Re: [Freesurfer] Otto: unsupported slice timing pattern 5

2013-08-22 Thread John Drozd
Hi,

One option is to open the volume in 3D Slicer and save it in .mgz format. 3D 
Slicer is free to download.

John



On 2013-08-22, at 4:30 PM, Otto Muzik  wrote:

> 
> Hi,
> 
> I am trying to convert a SIEMENS T1-weighted volume to the mgz
> format (via mri_convert) but I am getting constantly the error message
> 
> unsupported slice timing pattern 5 in file 
> 
> I saw in the archives that a lot of people had problems with this but
> could not find any solutions posted - what am I missing?
> 
> Many thanks
> 
> Otto
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[Freesurfer] Labels for comparison

2012-07-17 Thread John Drozd
Hello,

I have successfully developed an automated algorithm combining pixel 
intensity-based and shape based approaches to segment the lateral ventricles. I 
have applied my algorithm to a small data set of 1.5 T1 ADNI images consisting 
of 24 AD (subjects with Alzheimer Disease) 19 MCI (subjects with Mild Cognitive 
Impairment) and 24 NEC (elderly controls). In my cases, particularly AD cases, 
I noticed that the segmentation of the lateral ventricles is connected to the 
third ventricle with foramina (usually 1 on a side or on both sides). Also, 
sometimes I find a connection with the posterior horn and third ventricle.  I 
have researched CSF flow and from the literature, and all of these are real 
connections. I am near completion of developing an automated cropping scheme 
with a colleague to crop the third ventricle at these junctions.

Our implementation is a combination of C++ code that we have developed and 
modified ITK classes.  We have been viewing our segmented label maps in Slicer3 
and generated 3D renderings using Slicer3's Model Maker module which is based 
on Marching Cubes.

I have viewed a Freesurfer segmentation in Slicer3 based on a tutorial on the 
Slicer web site.

I presented a poster of our results at the AIC and AAIC conference which I am 
at now in Vancouver, and a few people have asked me to compare my volumes with 
other methods. They were particularly interested in comparing my volumes with 
Freesurfer ventricle volumes and cross-sectional and longitudinal data. I was 
told and found csv files on the ADNI web site of Freesurfer analysis. I plan to 
correlate my values with Freesurfer's values, but I would be interested if 
Freesurfer also finds these connections between the third ventricle and lateral 
ventricles and also if it includes isolated temporal horn pieces when the horns 
are discontinuous due to the MRI not being able to resolve a very thin portion 
of the temporal horn.

So, would it be possible, if I gave you a list of my ADNI subjects, for you to 
provide me the freesurfer label maps that correspond to the volumes in the csv 
files that are on the ADNI web site please? I could run Freesurfer but I would 
prefer having the label maps that exactly correspond to the Freesurfer 
ventricle volumes that are on the ADNI website. These would be from the two 
versions of Freesurfer noted on the ADNI web site in the ADNI Study Data/MRI 
image analysis link.

Thank you,
John

Sent from my iPhone 4S


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Re: [Freesurfer] Labels for comparison

2012-07-17 Thread John Drozd
Hi Bruce,

I apologize for my detailist nature.
I found the csv files on the ADNI web site containing the numerical values of 
volume in mm^3 numbers.  Do you mean that there should also be the 
corresponding label maps on the ADNI web site, particularly of the third and 
lateral ventricles?  I know when I ran recon-all it gave all the label maps of 
each parcellation of the brain and I could overlay these labels on the grey 
scale images and render 3D surface models in Slicer.  If this is the case, 
could you confirm this. Then I'll email ADNI to see if they have the label maps 
corresponding to the csv files that they have in the ADNI Study Data -> MRI 
Images -> Image Analysis link. 

I am particularly interested in where Freesurfer separates the lateral 
ventricles from the third ventricle at the foramina, or at the connection 
between the posterior horns and the third ventricle.  If you have any insight 
in this, that would be helpful.  I am glad that Freesurfer includes the 
isolated horn pieces, as you explained. I particularly found that accurate 
segmentation of the horns was very important for the significance statistics in 
comparing AD, MCI and NEC groups.  The next step for me will be sub-regional 
ventricle volumes, not only left and right but separate volumes of horns.  I am 
curious how you defined the division of left from right for the ventricles? Was 
it special landmarks on the atlas?

Thank you,
John

Sent from my iPhone 4S


On 2012-07-17, at 2:13 PM, Bruce Fischl  wrote:

> Hi John
> 
> have you checked with the ADNI folks? I think they have FreeSurfer 
> segmentation on many if not most of their subjects. We place no connectivity 
> constraints on the ventricular segmentations because they get so thin that 
> indeed sometimes 1mm data cannot resolve the connections. So
> sometimes the temporal or occipital horn are disconnected, and sometimes not.
> 
> cheers
> Bruce
> 
> 
> On Tue, 17 Jul 2012, John Drozd wrote:
> 
>> Hello,
>> 
>> I have successfully developed an automated algorithm combining pixel 
>> intensity-based and shape based approaches to segment the lateral 
>> ventricles. I have applied my algorithm to a small data set of 1.5 T1 ADNI 
>> images consisting of 24 AD (subjects with Alzheimer Disease) 19 MCI 
>> (subjects with Mild Cognitive Impairment) and 24 NEC (elderly controls). In 
>> my cases, particularly AD cases, I noticed that the segmentation of the 
>> lateral ventricles is connected to the third ventricle with foramina 
>> (usually 1 on a side or on both sides). Also, sometimes I find a connection 
>> with the posterior horn and third ventricle.  I have researched CSF flow and 
>> from the literature, and all of these are real connections. I am near 
>> completion of developing an automated cropping scheme with a colleague to 
>> crop the third ventricle at these junctions.
>> 
>> Our implementation is a combination of C++ code that we have developed and 
>> modified ITK classes.  We have been viewing our segmented label maps in 
>> Slicer3 and generated 3D renderings using Slicer3's Model Maker module which 
>> is based on Marching Cubes.
>> 
>> I have viewed a Freesurfer segmentation in Slicer3 based on a tutorial on 
>> the Slicer web site.
>> 
>> I presented a poster of our results at the AIC and AAIC conference which I 
>> am at now in Vancouver, and a few people have asked me to compare my volumes 
>> with other methods. They were particularly interested in comparing my 
>> volumes with Freesurfer ventricle volumes and cross-sectional and 
>> longitudinal data. I was told and found csv files on the ADNI web site of 
>> Freesurfer analysis. I plan to correlate my values with Freesurfer's values, 
>> but I would be interested if Freesurfer also finds these connections between 
>> the third ventricle and lateral ventricles and also if it includes isolated 
>> temporal horn pieces when the horns are discontinuous due to the MRI not 
>> being able to resolve a very thin portion of the temporal horn.
>> 
>> So, would it be possible, if I gave you a list of my ADNI subjects, for you 
>> to provide me the freesurfer label maps that correspond to the volumes in 
>> the csv files that are on the ADNI web site please? I could run Freesurfer 
>> but I would prefer having the label maps that exactly correspond to the 
>> Freesurfer ventricle volumes that are on the ADNI website. These would be 
>> from the two versions of Freesurfer noted on the ADNI web site in the ADNI 
>> Study Data/MRI image analysis link.
>> 
>> Thank you,
>> John
>> 
>> Sent from my iPhone 4S
>> 
>> 
>> ___

Re: [Freesurfer] Labels for comparison

2012-07-18 Thread John Drozd
Hi Bruce,

Thank you very much for your clarifications.  I will ask ADNI for their 
permission and I will consult CMA for their definitions.

Thank you,
Have a great day,
John

Sent from my iPhone 4S


On 2012-07-18, at 6:42 AM, Bruce Fischl  wrote:

> Hi John
> 
> we follow the conventions of the Center for Morphometric Analysis (CMA) here 
> at MGH. I'm not actually sure what landmarks they use to separate what they 
> call "inferior lateral ventricle" from the main one, but you can check with 
> them.
> 
> As for ADNI, we might have that data but I'm not sure we are allowed to 
> distribute it. If you check with them about it and let us know we'll give you 
> what we have.
> 
> cheers
> Bruce
> 
> 
> On Tue, 17 Jul 2012, John Drozd wrote:
> 
>> Hi Bruce,
>> 
>> I apologize for my detailist nature.
>> I found the csv files on the ADNI web site containing the numerical values 
>> of volume in mm^3 numbers.  Do you mean that there should also be the 
>> corresponding label maps on the ADNI web site, particularly of the third and 
>> lateral ventricles?  I know when I ran recon-all it gave all the label maps 
>> of each parcellation of the brain and I could overlay these labels on the 
>> grey scale images and render 3D surface models in Slicer.  If this is the 
>> case, could you confirm this. Then I'll email ADNI to see if they have the 
>> label maps corresponding to the csv files that they have in the ADNI Study 
>> Data -> MRI Images -> Image Analysis link.
>> 
>> I am particularly interested in where Freesurfer separates the lateral 
>> ventricles from the third ventricle at the foramina, or at the connection 
>> between the posterior horns and the third ventricle.  If you have any 
>> insight in this, that would be helpful.  I am glad that Freesurfer includes 
>> the isolated horn pieces, as you explained. I particularly found that 
>> accurate segmentation of the horns was very important for the significance 
>> statistics in comparing AD, MCI and NEC groups.  The next step for me will 
>> be sub-regional ventricle volumes, not only left and right but separate 
>> volumes of horns.  I am curious how you defined the division of left from 
>> right for the ventricles? Was it special landmarks on the atlas?
>> 
>> Thank you,
>> John
>> 
>> Sent from my iPhone 4S
>> 
>> 
>> On 2012-07-17, at 2:13 PM, Bruce Fischl  wrote:
>> 
>>> Hi John
>>> 
>>> have you checked with the ADNI folks? I think they have FreeSurfer 
>>> segmentation on many if not most of their subjects. We place no 
>>> connectivity constraints on the ventricular segmentations because they get 
>>> so thin that indeed sometimes 1mm data cannot resolve the connections. So
>>> sometimes the temporal or occipital horn are disconnected, and sometimes 
>>> not.
>>> 
>>> cheers
>>> Bruce
>>> 
>>> 
>>> On Tue, 17 Jul 2012, John Drozd wrote:
>>> 
>>>> Hello,
>>>> 
>>>> I have successfully developed an automated algorithm combining pixel 
>>>> intensity-based and shape based approaches to segment the lateral 
>>>> ventricles. I have applied my algorithm to a small data set of 1.5 T1 ADNI 
>>>> images consisting of 24 AD (subjects with Alzheimer Disease) 19 MCI 
>>>> (subjects with Mild Cognitive Impairment) and 24 NEC (elderly controls). 
>>>> In my cases, particularly AD cases, I noticed that the segmentation of the 
>>>> lateral ventricles is connected to the third ventricle with foramina 
>>>> (usually 1 on a side or on both sides). Also, sometimes I find a 
>>>> connection with the posterior horn and third ventricle.  I have researched 
>>>> CSF flow and from the literature, and all of these are real connections. I 
>>>> am near completion of developing an automated cropping scheme with a 
>>>> colleague to crop the third ventricle at these junctions.
>>>> 
>>>> Our implementation is a combination of C++ code that we have developed and 
>>>> modified ITK classes.  We have been viewing our segmented label maps in 
>>>> Slicer3 and generated 3D renderings using Slicer3's Model Maker module 
>>>> which is based on Marching Cubes.
>>>> 
>>>> I have viewed a Freesurfer segmentation in Slicer3 based on a tutorial on 
>>>> the Slicer web site.
>>>> 
>>>> I presented a poster of our results at the AIC and AAIC conference which I 
>>>> am at now

[Freesurfer] question on invoking partial volume calculations in freesurfer 4.3

2012-11-30 Thread John Drozd
Hello,

My freesurfer version is freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0

I noticed that the aparc+aseg.mgz label map is resampled to 1mm x 1mm
x 1mm voxels,
eventhough the .mgz grayscale mri image file remains as per the
original voxel size and is not 1x1x1.  mri_convert .nii to .mgz
translates the grayscale image down the y direction in the horizontal
plane transverse/axial slices.

I noticed that the aseg.stats files list the number of voxels and the
volume, and these numbers match because the voxel size is 1 x 1 x 1.

My question is whether freesurfer 4.3 can be invoked to perform
partial volume error corrections, and if so how do you invoke this
feature?

My interests lie in segmentations of the lateral ventricles including
their posterior and inferior horns.

thank you,
john
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Re: [Freesurfer] question on invoking partial volume calculations in freesurfer 4.3

2012-11-30 Thread John Drozd
Thanks Doug. Do you know if the Freesurfer volumes in mm^3 that are posted on 
the ADNI website (particularly the longitudinal studies) include partial volume 
corrections? i.e., if they were run to include partial volume calculations?

Thank you,
John

On 2012-11-30, at 3:11 PM, Douglas N Greve  wrote:

> Hi John, it has been a long time since I looked at version 4.3, so I 
> don't know if it can or not. One thing you can try is to use the version 
> 5.x mri_segstats (the program which computes the aseg.stats table). You 
> could run this outside of recon-all and generate a file with a different 
> name. That way you won't have to worry about mixing version.
> doug
> 
> 
> On 11/30/2012 03:00 PM, John Drozd wrote:
>> Hello,
>> 
>> My freesurfer version is freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0
>> 
>> I noticed that the aparc+aseg.mgz label map is resampled to 1mm x 1mm
>> x 1mm voxels,
>> eventhough the .mgz grayscale mri image file remains as per the
>> original voxel size and is not 1x1x1.  mri_convert .nii to .mgz
>> translates the grayscale image down the y direction in the horizontal
>> plane transverse/axial slices.
>> 
>> I noticed that the aseg.stats files list the number of voxels and the
>> volume, and these numbers match because the voxel size is 1 x 1 x 1.
>> 
>> My question is whether freesurfer 4.3 can be invoked to perform
>> partial volume error corrections, and if so how do you invoke this
>> feature?
>> 
>> My interests lie in segmentations of the lateral ventricles including
>> their posterior and inferior horns.
>> 
>> thank you,
>> john
>> ___
>> Freesurfer mailing list
>> Freesurfer@nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
> 
> -- 
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
> Phone Number: 617-724-2358
> Fax: 617-726-7422
> 
> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/
> 
> ___
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> Freesurfer@nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
> 
> 
> The information in this e-mail is intended only for the person to whom it is
> addressed. If you believe this e-mail was sent to you in error and the e-mail
> contains patient information, please contact the Partners Compliance HelpLine 
> at
> http://www.partners.org/complianceline . If the e-mail was sent to you in 
> error
> but does not contain patient information, please contact the sender and 
> properly
> dispose of the e-mail.
> 

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[Freesurfer] downloading GradientUnwarping

2012-12-20 Thread John Drozd
Hello,

I would like to download and install the software described at

http://surfer.nmr.mgh.harvard.edu/fswiki/GradientUnwarping

Your email address is listed on this website.

I cannot find a download link.

We would like to use this with Freesurfer.

Do you know where I can download this software from?

Thank you,

John

John J. Drozd, M.Sc., Ph.D.
Post-Doctoral Fellow
Robarts Research Institute
Western University
London, Ontario, Canada
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Re: [Freesurfer] downloading GradientUnwarping

2012-12-20 Thread John Drozd
Thanks Dan.

It is already installed with Freesurfer as you say:

[jdrozd@trumpet bin]$ pwd
/trumpet/downloads/FreeSurfer/freesurfer/bin
[jdrozd@trumpet bin]$ ./grad_unwarp

USAGE: grad_unwarp

   -i infile   : dcmdir or dcmfile or mghfile
   -s seriesno : dicom series - needed only if invoking -i dcmdir
   -unwarp: gradient unwarping
: Optional type is the gradient unwarping displacements
: map to use - supply either scanner gradient model (sonata,
: allegra, brm, crm) or map filename.  (BRM is GE like
: UCSD's 1.5T; CRM is GE like MGH Bay 1, BWH-GE, Duke-GE.)
: If unwarping an mgh volume, user _must_ supply a type.
   -nojac   : don't do jacobian correction when unwarping
   -corfov  : resample to cor FOV (bug: recenters volume on (0,0,0))
   -cor : save as COR format instead of mgh (you should use -corfov as well)
   -interp  : method (,linear,nearest,spline)
   -o outfile  : MGH formatted by default (unless -cor is specified)
   -matlab matlab_binary  : default is
/space/lyon/6/pubsw/common/matlab/6.5/bin/matlab
  : grad_unwarp needs at least version 6.5 to
handle the long.
  : filenames.  And this installation has
crucial dicom patches.
   -version : print version string
   -help: print help text



On 12/20/12, dgw  wrote:
> Is it not included in your freesurfer installation?
>
> To check:
> After sourcing Freesurfer type
>
> which grad_unwarp
>
> HTH
> Dan
>
> On Thu, Dec 20, 2012 at 9:42 AM, John Drozd  wrote:
>> Hello,
>>
>> I would like to download and install the software described at
>>
>> http://surfer.nmr.mgh.harvard.edu/fswiki/GradientUnwarping
>>
>> Your email address is listed on this website.
>>
>> I cannot find a download link.
>>
>> We would like to use this with Freesurfer.
>>
>> Do you know where I can download this software from?
>>
>> Thank you,
>>
>> John
>>
>> John J. Drozd, M.Sc., Ph.D.
>> Post-Doctoral Fellow
>> Robarts Research Institute
>> Western University
>> London, Ontario, Canada
>>
>>
>>
>> ___
>> Freesurfer mailing list
>> Freesurfer@nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>>
>>
>> The information in this e-mail is intended only for the person to whom it
>> is
>> addressed. If you believe this e-mail was sent to you in error and the
>> e-mail
>> contains patient information, please contact the Partners Compliance
>> HelpLine at
>> http://www.partners.org/complianceline . If the e-mail was sent to you in
>> error
>> but does not contain patient information, please contact the sender and
>> properly
>> dispose of the e-mail.
>>
>
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[Freesurfer] What is the correct way to cite Freesurfer in a journal paper?

2013-01-13 Thread john . drozd
Hello,

I am writing a paper for publication in Neuroimage.

I used Freesurfer 4.3 to segment brain anatomy. Lateral ventricles were my 
focus.

Can someone please tell me what is the correct way to cite Freesurfer in a 
bibliography?
Is there a paper I can cite?

Thank you,
John Drozd

John Jan Drozd, M.Sc., Ph.D.

Financial Secretary
Knights of Columbus
St. Pius X Council 10561
Holy Family Parish

Post-Doctoral Scholar (Fellow)
Imaging Department
Robarts Research Institute
Western University

London, ON, Canada

http://publish.uwo.ca/~jdrozd2
http://kong.apmaths.uwo.ca/~jdrozd/personal.html
http://kong.apmaths.uwo.ca/~jdrozd/bio.html
http://cfmm.robarts.ca/people/staff/bartha-group/#john

cell phone: 519-282-3340




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Re: [Freesurfer] What is the correct way to cite Freesurfer in a journal paper?

2013-01-13 Thread John Drozd
Hi Bruce,

Thank you very much.

Enjoy your Sunday.

John

On 2013-01-13, at 9:01 AM, Bruce Fischl  wrote:

> Hi John
> 
> if you are really only looking at the ventricles it would probably be:
> 
> for the segmentation:
> Whole Brain Segmentation: Automated Labeling of Neuroanatomical Structures in 
> the Human Brain, Fischl, B., D.H. Salat, E. Busa, M. Albert, M. Dieterich, C. 
> Haselgrove, A. van der Kouwe, R. Killiany, D. Kennedy, S. Klaveness, A. 
> Montillo, N. Makris, B. Rosen, and A.M. Dale, (2002). Neuron, 33:341-355.
> 
> Sequence-Independent Segmentation of Magnetic Resonance Images, Fischl, B., 
> Salat, D.H., van der Kouwe, A.J.W., Makris, N., Ségonne, F., and Dale, A.M. 
> (2004) NeuroImage 23:S69-S84.
> 
> Atlas Renormalization for Improved Brain MR Image Segmentation Across Scanner 
> Platforms, Han, X. and B. Fischl, (2007). IEEE Transactions on Medical 
> Imaging, 26(4):479-486.
> 
> for skull stripping:
> A Hybrid Approach to the Skull-Stripping Problem in MRI, Ségonne, F., Dale, 
> A.M., Busa, E., Glessner, M., Salvolini, U., Hahn, H.K., Fischl, B. (2004). 
> NeuroImage, 22:1160-1075.
> 
> cheers
> Bruce
> 
> On Sun, 13 Jan 2013, john.dr...@gmail.com wrote:
> 
>> Hello,
>> 
>> I am writing a paper for publication in Neuroimage.
>> 
>> I used Freesurfer 4.3 to segment brain anatomy. Lateral ventricles were my 
>> focus.
>> 
>> Can someone please tell me what is the correct way to cite Freesurfer in a 
>> bibliography?
>> Is there a paper I can cite?
>> 
>> Thank you,
>> John Drozd
>> 
>> John Jan Drozd, M.Sc., Ph.D.
>> 
>> Financial Secretary
>> Knights of Columbus
>> St. Pius X Council 10561
>> Holy Family Parish
>> 
>> Post-Doctoral Scholar (Fellow)
>> Imaging Department
>> Robarts Research Institute
>> Western University
>> 
>> London, ON, Canada
>> 
>> http://publish.uwo.ca/~jdrozd2
>> http://kong.apmaths.uwo.ca/~jdrozd/personal.html
>> http://kong.apmaths.uwo.ca/~jdrozd/bio.html
>> http://cfmm.robarts.ca/people/staff/bartha-group/#john
>> 
>> cell phone: 519-282-3340
>> 
>> 
>> 
>> 
>> ___
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>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
> 
> 
> The information in this e-mail is intended only for the person to whom it is
> addressed. If you believe this e-mail was sent to you in error and the e-mail
> contains patient information, please contact the Partners Compliance HelpLine 
> at
> http://www.partners.org/complianceline . If the e-mail was sent to you in 
> error
> but does not contain patient information, please contact the sender and 
> properly
> dispose of the e-mail.

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[Freesurfer] Re: zero determinant error in using mri_convert rawavg.mgz orig.mgz --conform

2009-05-13 Thread John Drozd
S32496_I63397_76.dcm*
> 70731171155016_S32496_I63397_151.dcm*  70731171155016_S32496_I63397_77.dcm*
> 70731171155016_S32496_I63397_152.dcm*  70731171155016_S32496_I63397_78.dcm*
> 70731171155016_S32496_I63397_153.dcm*  70731171155016_S32496_I63397_79.dcm*
> 70731171155016_S32496_I63397_154.dcm*  70731171155016_S32496_I63397_7.dcm*
> 70731171155016_S32496_I63397_155.dcm*  70731171155016_S32496_I63397_80.dcm*
> 70731171155016_S32496_I63397_156.dcm*  70731171155016_S32496_I63397_81.dcm*
> 70731171155016_S32496_I63397_157.dcm*  70731171155016_S32496_I63397_82.dcm*
> 70731171155016_S32496_I63397_158.dcm*  70731171155016_S32496_I63397_83.dcm*
> 70731171155016_S32496_I63397_159.dcm*  70731171155016_S32496_I63397_84.dcm*
> 70731171155016_S32496_I63397_15.dcm*   70731171155016_S32496_I63397_85.dcm*
> 70731171155016_S32496_I63397_160.dcm*  70731171155016_S32496_I63397_86.dcm*
> 70731171155016_S32496_I63397_161.dcm*  70731171155016_S32496_I63397_87.dcm*
> 70731171155016_S32496_I63397_162.dcm*  70731171155016_S32496_I63397_88.dcm*
> 70731171155016_S32496_I63397_163.dcm*  70731171155016_S32496_I63397_89.dcm*
> 70731171155016_S32496_I63397_164.dcm*  70731171155016_S32496_I63397_8.dcm*
> 70731171155016_S32496_I63397_165.dcm*  70731171155016_S32496_I63397_90.dcm*
> 70731171155016_S32496_I63397_16.dcm*   70731171155016_S32496_I63397_91.dcm*
> 70731171155016_S32496_I63397_17.dcm*   70731171155016_S32496_I63397_92.dcm*
> 70731171155016_S32496_I63397_18.dcm*   70731171155016_S32496_I63397_93.dcm*
> 70731171155016_S32496_I63397_19.dcm*   70731171155016_S32496_I63397_94.dcm*
> 70731171155016_S32496_I63397_1.dcm*70731171155016_S32496_I63397_95.dcm*
> 70731171155016_S32496_I63397_20.dcm*   70731171155016_S32496_I63397_96.dcm*
> 70731171155016_S32496_I63397_21.dcm*   70731171155016_S32496_I63397_97.dcm*
> 70731171155016_S32496_I63397_22.dcm*   70731171155016_S32496_I63397_98.dcm*
> 70731171155016_S32496_I63397_23.dcm*   70731171155016_S32496_I63397_99.dcm*
> 70731171155016_S32496_I63397_24.dcm*   70731171155016_S32496_I63397_9.dcm*
>
> I first converted these files to an mgz file using:
>
> [jdr...@trumpet orig]$ mri_convert -it dicom
> 70731171155016_S32496_I63397_0.dcm T1.mgz
> mri_convert -it dicom 70731171155016_S32496_I63397_0.dcm T1.mgz
> $Id: mri_convert.c,v 1.146.2.4 2009/01/30 02:30:42 nicks Exp $
> reading from 70731171155016_S32496_I63397_0.dcm...
> Starting DICOMRead2()
> dcmfile =
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/orig/70731171155016_S32496_I63397_0.dcm
> dcmdir =
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/orig
> WARNING: tag ImageNumber not found
> Ref Series No = 63443
> Found 168 files, checking for dicoms
> WARNING: tag ImageNumber not found
> Found 166 dicom files in series.
> WARNING: tag ImageNumber not found
> First Sorting
> WARNING: files are not found to be different and cannot be sorted
> File1:
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/orig/70731171155016_S32496_I63397_0.dcm
> File2:
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/orig/70731171155016_S32496_I63397_1.dcm
> Computing Slice Direction
> Vs: 1.2024 0 0
> Vs: 1 0 0
> Second Sorting
> Counting frames
> nframes = 1
> nslices = 166
> ndcmfiles = 166
> PE Dir = UNKNOWN (dicom read)
> TransferSyntaxUID: --1.2.840.10008.1.2--
> jpegUID:   --1.2.840.10008.1.2.4--
> Loading pixel data
> TR=0.00, TE=0.00, TI=0.00, flip angle=0.00
> i_ras = (-0, -0, -1)
> j_ras = (-0, -1, 0)
> k_ras = (-1, -0, 0)
> writing to T1.mgz...
>
> Then I copied the outputted T1.mgz file using:
>
> [jdr...@trumpet orig]$ cp T1.mgz ../rawavg.mgz
> [jdr...@trumpet orig]$ cd ..
> [jdr...@trumpet mri]$ ls
> 1.Bvq.Xml*  2.Bvq.Xml*  error.log  orig/  orig2/  rawavg.mgz  transforms/
> [jdr...@trumpet mri]$ pwd
>
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri
>
> Then I tried to conform the data using:
>
> [jdr...@trumpet mri]$ mri_convert rawavg.mgz orig.mgz --conform
> mri_convert rawavg.mgz orig.mgz --conform
> $Id: mri_convert.c,v 1.146.2.4 2009/01/30 02:30:42 nicks Exp $
> reading from rawavg.mgz...
> TR=0.00, TE=0.00, TI=0.00, flip angle=0.00
> i_ras = (-0, -0, -1)
> j_ras = (-0, -1, 0)
> k_ras = (-1, -0, 0)
> Original Data has (0.93905, 0.93905, 0) mm size and (256, 256, 166) voxels.
> Data is conformed to 1 mm size and 256 voxels for all directions
> changing data type from 4 to 0 (noscale = 0)...
> MRIchangeType: Building histogram
> Reslicing using trilinear interpolation
> MRIresa

Re: [Freesurfer] Re: zero determinant error in using mri_convert rawavg.mgz orig.mgz --conform

2009-05-15 Thread John Drozd
Hello Bruce and Nick,

Thank you, Bruce,  for the clarification that FreeSurfer when reading
my dicom files, it thinks the slice thickness is 0, and thank you Nick for
your help as well.  Just for your information, 3D Slicer was able to read in

the dicom files successfully.  I find this perplexing.

Anyways, I tried an alternate route with FreeSurfer which seemed to work
reasonably well.  The dicom files that I was using were derived from a nifti
.nii file.
So I used the original .nii file and everything worked with FreeSurfer,
except
when I tried to perform non-uniform intensity normalization (the program
gave a segmentation crash) when I typed:
mri_nu_correct.mni --i orig.mgz --o nu.mgz --n 2

So I did the talairach transformation without performing the non-uniform
intensity normalization, and then I was able to calculate the total
intercranial
volume when I typed:
talairach_avi --i orig.mgz --xfm transforms/talairach.auto.xfm
cp transforms/talairach.auto.xfm transforms/talairach.xfm
mri_segstats --subject subjid --etiv-only

Now that I am able to calculate the total intercranial volume with
FreeSurfer,
I am interested in the details of the procedure that FreeSurfer uses to
calculate
the intercranial volume.  Afterall, the pudding is in the details.
I am interested in what components of the head FreeSurfer includes/excludes
in its calculation of total intercranial volume.  I am also interested in
the details of
the mathematical and computer algorithm used to calculate the total
intercranial
volume (as well as for calculating ventricle volume).  I am performing image
analysis
for research on Alzheimer's Disease and I need to understand these
calculations
in detail.  Can you recommend any good references that would provide me
information on how FreeSurfer calculates the total intracranial volume and
ventricle volume?
Also, please let me know if the source code is available for my viewing if
at all possible,
which would be really handy.

Thank you,
John Drozd

PostDoctoral Fellow
Robarts Research Institute,
Imaging Department,
The University of Western Ontario
London, Ontario, Canada

On Wed, May 13, 2009 at 5:28 PM, Bruce Fischl wrote:

> looks like it thinks the slice thickness is 0, which is probably bad
>
> On Wed, 13 May 2009, Nick Schmansky wrote:
>
> John,
>>
>> What does the file look like when its opened in tkmedit?  ie
>>
>> tkmedit -f T1.mgz
>>
>> does it look like our sample subject data bert?  ie, a full brain t1
>> anatomical scan?
>>
>> Nick
>>
>> On Wed, 2009-05-13 at 16:41 -0400, John Drozd wrote:
>>
>>>
>>>Hello,
>>>
>>>Here is the ouput from bugr:
>>>
>>>FREESURFER_HOME: /trumpet/downloads/FreeSurfer/freesurfer
>>>
>>>Build stamp: freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0
>>>
>>>RedHat release: Fedora release 10 (Cambridge)
>>>
>>>Kernel info: Linux 2.6.27.21-170.2.56.fc10.x86_64 x86_64
>>>
>>>I have sets of dicom files such as:
>>>
>>>[jdr...@trumpet orig]$ ls
>>>70731171155016_S32496_I63397_0.dcm*
>>> 70731171155016_S32496_I63397_25.dcm*
>>>70731171155016_S32496_I63397_100.dcm*
>>> 70731171155016_S32496_I63397_26.dcm*
>>>70731171155016_S32496_I63397_101.dcm*
>>> 70731171155016_S32496_I63397_27.dcm*
>>>70731171155016_S32496_I63397_102.dcm*
>>> 70731171155016_S32496_I63397_28.dcm*
>>>70731171155016_S32496_I63397_103.dcm*
>>> 70731171155016_S32496_I63397_29.dcm*
>>>70731171155016_S32496_I63397_104.dcm*
>>> 70731171155016_S32496_I63397_2.dcm*
>>>70731171155016_S32496_I63397_105.dcm*
>>> 70731171155016_S32496_I63397_30.dcm*
>>>70731171155016_S32496_I63397_106.dcm*
>>> 70731171155016_S32496_I63397_31.dcm*
>>>70731171155016_S32496_I63397_107.dcm*
>>> 70731171155016_S32496_I63397_32.dcm*
>>>70731171155016_S32496_I63397_108.dcm*
>>> 70731171155016_S32496_I63397_33.dcm*
>>>70731171155016_S32496_I63397_109.dcm*
>>> 70731171155016_S32496_I63397_34.dcm*
>>>70731171155016_S32496_I63397_10.dcm*
>>>70731171155016_S32496_I63397_35.dcm*
>>>70731171155016_S32496_I63397_110.dcm*
>>> 70731171155016_S32496_I63397_36.dcm*
>>>70731171155016_S32496_I63397_111.dcm*
>>> 70731171155016_S32496_I63397_37.dcm*
>>>70731171155016_S32496_I63397_112.dcm*
>>> 70731171155016_S32

Re: [Freesurfer] Re: zero determinant error in using mri_convert rawavg.mgz orig.mgz --conform

2009-05-15 Thread John Drozd
Hello again,

I incorrectly used the term intercranial volume in my email below.
I meant to type intracranial volume.

john

On Fri, May 15, 2009 at 7:29 AM, John Drozd  wrote:

> Hello Bruce and Nick,
>
> Thank you, Bruce,  for the clarification that FreeSurfer when reading
> my dicom files, it thinks the slice thickness is 0, and thank you Nick for
> your help as well.  Just for your information, 3D Slicer was able to read
> in
> the dicom files successfully.  I find this perplexing.
>
> Anyways, I tried an alternate route with FreeSurfer which seemed to work
> reasonably well.  The dicom files that I was using were derived from a
> nifti .nii file.
> So I used the original .nii file and everything worked with FreeSurfer,
> except
> when I tried to perform non-uniform intensity normalization (the program
> gave a segmentation crash) when I typed:
> mri_nu_correct.mni --i orig.mgz --o nu.mgz --n 2
>
> So I did the talairach transformation without performing the non-uniform
> intensity normalization, and then I was able to calculate the total
> intercranial
> volume when I typed:
> talairach_avi --i orig.mgz --xfm transforms/talairach.auto.xfm
> cp transforms/talairach.auto.xfm transforms/talairach.xfm
> mri_segstats --subject subjid --etiv-only
>
> Now that I am able to calculate the total intercranial volume with
> FreeSurfer,
> I am interested in the details of the procedure that FreeSurfer uses to
> calculate
> the intercranial volume.  Afterall, the pudding is in the details.
> I am interested in what components of the head FreeSurfer includes/excludes
> in its calculation of total intercranial volume.  I am also interested in
> the details of
> the mathematical and computer algorithm used to calculate the total
> intercranial
> volume (as well as for calculating ventricle volume).  I am performing
> image analysis
> for research on Alzheimer's Disease and I need to understand these
> calculations
> in detail.  Can you recommend any good references that would provide me
> information on how FreeSurfer calculates the total intracranial volume and
> ventricle volume?
> Also, please let me know if the source code is available for my viewing if
> at all possible,
> which would be really handy.
>
> Thank you,
> John Drozd
>
> PostDoctoral Fellow
> Robarts Research Institute,
> Imaging Department,
> The University of Western Ontario
> London, Ontario, Canada
>
> On Wed, May 13, 2009 at 5:28 PM, Bruce Fischl 
> wrote:
>
>> looks like it thinks the slice thickness is 0, which is probably bad
>>
>> On Wed, 13 May 2009, Nick Schmansky wrote:
>>
>> John,
>>>
>>> What does the file look like when its opened in tkmedit?  ie
>>>
>>> tkmedit -f T1.mgz
>>>
>>> does it look like our sample subject data bert?  ie, a full brain t1
>>> anatomical scan?
>>>
>>> Nick
>>>
>>> On Wed, 2009-05-13 at 16:41 -0400, John Drozd wrote:
>>>
>>>>
>>>>Hello,
>>>>
>>>>Here is the ouput from bugr:
>>>>
>>>>FREESURFER_HOME: /trumpet/downloads/FreeSurfer/freesurfer
>>>>
>>>>Build stamp: freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0
>>>>
>>>>RedHat release: Fedora release 10 (Cambridge)
>>>>
>>>>Kernel info: Linux 2.6.27.21-170.2.56.fc10.x86_64 x86_64
>>>>
>>>>I have sets of dicom files such as:
>>>>
>>>>[jdr...@trumpet orig]$ ls
>>>>70731171155016_S32496_I63397_0.dcm*
>>>> 70731171155016_S32496_I63397_25.dcm*
>>>>70731171155016_S32496_I63397_100.dcm*
>>>> 70731171155016_S32496_I63397_26.dcm*
>>>>70731171155016_S32496_I63397_101.dcm*
>>>> 70731171155016_S32496_I63397_27.dcm*
>>>>70731171155016_S32496_I63397_102.dcm*
>>>> 70731171155016_S32496_I63397_28.dcm*
>>>>70731171155016_S32496_I63397_103.dcm*
>>>> 70731171155016_S32496_I63397_29.dcm*
>>>>70731171155016_S32496_I63397_104.dcm*
>>>> 70731171155016_S32496_I63397_2.dcm*
>>>>70731171155016_S32496_I63397_105.dcm*
>>>> 70731171155016_S32496_I63397_30.dcm*
>>>>70731171155016_S32496_I63397_106.dcm*
>>>> 70731171155016_S32496_I63397_31.dcm*
>>>>70731171155016_S32496_I63397_107.dcm*
>>>> 70731171155016_S32496_I63397_32.dcm*
>>>> 

[Freesurfer] licensing question

2009-05-25 Thread John Drozd
*Hello,

I have a question regarding the second statement in the Clinical Use section
of your registration web page.

"Clinical Use:  This software may not and should never be used for clinical
purposes.  Software used for clinical purposes may require regulatory
documentation and associated filings."

Does the statement  "**Software used for clinical purposes may require
regulatory documentation and associated filings." mean that a version of
FreeSurfer can be used for clinical work?

Thank you for your time,
john drozd
*
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Re: [Freesurfer] licensing question

2009-05-25 Thread John Drozd
Hello,

Do you know of any regulations about using FreeSurfer outside of the U.S.,
specifically in Canada?

Thank you,
john drozd

2009/5/25 Pedro Paulo de Magalhães Oliveira Junior 

> Software used for clinical purposes need a FDA approval in US.
> FreeSurfer main target is research. If you use it for clinical purposes you
> are on your own risk.
>
> cheers.
>
> PPJ
> ---
> Pedro Paulo de M. Oliveira Junior
> Diretor de Operações
> Netfilter & SpeedComm Telecom
> --- Novo Netfilter 3.0 www.netfilter.com.br
>
>
>
> 2009/5/25 John Drozd 
>
>> *Hello,
>>
>> I have a question regarding the second statement in the Clinical Use
>> section of your registration web page.
>>
>> "Clinical Use:  This software may not and should never be used for
>> clinical purposes.  Software used for clinical purposes may require
>> regulatory documentation and associated filings."
>>
>> Does the statement  "**Software used for clinical purposes may require
>> regulatory documentation and associated filings." mean that a version of
>> FreeSurfer can be used for clinical work?
>>
>> Thank you for your time,
>> john drozd
>> *
>> ___
>> Freesurfer mailing list
>> Freesurfer@nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>>
>
>
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[Freesurfer] segmentation fault when running mris_anatomical_stats

2009-05-26 Thread John Drozd
Hello,

I am running the reconall steps individually for a firts try.

I noticed that I get a segmentation fault when I run mris_anatomical_stats
as whown below:

[jdr...@trumpet mri]$ mris_anatomical_stats -mgz -f ../stats/lh.aparc.stats
-b -a ../label/lh.aparc.annot -cf ../label/aparc.annot.ctab convertedfile
lh
INFO: assuming MGZ format for
volumes.
computing statistics for each annotation in ../label/lh.aparc.annot.
reading volume
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/wm.mgz...
reading input surface
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
reading input pial surface
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.pial...
reading input white surface
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
reading colortable from annotation file...
colortable with 35 entries read (originally
/space/amaebi/26/users/buckner_cortical_atlas/scripts/colortable_final.txt)
Saving annotation colortable ../label/aparc.annot.ctab

table columns are:
number of vertices
total surface area (mm^2)
total gray matter volume (mm^3)
average cortical thickness +- standard deviation (mm)
integrated rectified mean curvature
integrated rectified Gaussian curvature
folding index
intrinsic curvature index
structure name

Segmentation fault

john
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[Freesurfer] Re: question about eTIV calculation

2009-05-26 Thread John Drozd
Hello,

I have a question about the eTIV intracranial volume calculation.

My question is:

Does the eTIV intracranial volume include everything interior to the outer
pial surface
(excluding the skull, eyes, neck and dura), and does it also include the
CSF?

That's all.
Thank you for your time.

john drozd
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[Freesurfer] Re: segmentation fault when running mris_anatomical_stats

2009-05-26 Thread John Drozd
Hello again,

Sorry, I forgot to include the required info:

john

FREESURFER_HOME: /trumpet/downloads/FreeSurfer/freesurfer

Build stamp: freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0

RedHat release: Fedora release 10 (Cambridge)

Kernel info: Linux 2.6.27.21-170.2.56.fc10.x86_64 x86_64

-
Please include the following additional information in your report:

  1) subject name: convertedfile

  2) the entire command-line executed:
  mris_anatomical_stats -mgz -f ../stats/lh.aparc.stats -b -a
../label/lh.aparc.annot -cf ../label/aparc.annot.ctab convertedfile lh

  3) the error message generated:
  Segmentation fault

  4) optionally include the subject's /script/recon-all.log


On Tue, May 26, 2009 at 2:23 PM, John Drozd  wrote:

> Hello,
>
> I am running the reconall steps individually for a firts try.
>
> I noticed that I get a segmentation fault when I run mris_anatomical_stats
> as whown below:
>
> [jdr...@trumpet mri]$ mris_anatomical_stats -mgz -f
> ../stats/lh.aparc.stats -b -a ../label/lh.aparc.annot -cf
> ../label/aparc.annot.ctab convertedfile lh
> INFO: assuming MGZ format for
> volumes.
> computing statistics for each annotation in ../label/lh.aparc.annot.
> reading volume
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/wm.mgz...
> reading input surface
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
> reading input pial surface
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.pial...
> reading input white surface
> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
> reading colortable from annotation file...
> colortable with 35 entries read (originally
> /space/amaebi/26/users/buckner_cortical_atlas/scripts/colortable_final.txt)
> Saving annotation colortable ../label/aparc.annot.ctab
>
> table columns are:
> number of vertices
> total surface area (mm^2)
> total gray matter volume (mm^3)
> average cortical thickness +- standard deviation (mm)
> integrated rectified mean curvature
> integrated rectified Gaussian curvature
> folding index
> intrinsic curvature index
> structure name
>
> Segmentation fault
>
> john
>
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Re: [Freesurfer] Re: question about eTIV calculation

2009-05-26 Thread John Drozd
Hi Doug,

Thank you for your clarification. I checked Randy Buckner's paper, and it
did include the CSF based on my interpretation of the paper's Fig. 3 images
of the manual tracings in atlas space.

john

On Tue, May 26, 2009 at 3:08 PM, Douglas N Greve
wrote:

>
> The eTIV we report is not based on counting voxels inside the skull.
> Instead, it is based on a statistical relationship between the TIV computed
> from a manual segmentation and the talairach transfrom (see Randy Buckner's
> paper). I don't know whether the original manual segs included CSF (I assume
> it did).
>
> doug
>
> John Drozd wrote:
>
>> Hello,
>>
>> I have a question about the eTIV intracranial volume calculation.
>>
>> My question is:
>>
>> Does the eTIV intracranial volume include everything interior to the outer
>> pial surface
>> (excluding the skull, eyes, neck and dura), and does it also include the
>> CSF?
>>
>> That's all.
>> Thank you for your time.
>>
>> john drozd
>>
>>
>>
>> 
>>
>> ___
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>>
>
> --
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
> Phone Number: 617-724-2358 Fax: 617-726-7422
>
> In order to help us help you, please follow the steps in:
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>
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Re: [Freesurfer] Re: segmentation fault when running mris_anatomical_stats

2009-05-26 Thread John Drozd
Hi Doug,

It is writing to the trumpet directory which is not full.
It does write out the output file aparc.annot.ctab, but seg faults at the
end.

Here is the df -h output for the trumpet directory (775Gb are available):

[jdr...@trumpet label]$ df -h
FilesystemSize  Used Avail Use% Mounted on
/dev/md2   50G  7.7G   40G  17% /
/dev/md3  862G   43G  775G   6% /trumpet
/dev/md0  122M   21M   95M  19% /boot
tmpfs 3.0G  952K  3.0G   1% /dev/shm
nil:/people/j 185G  180G  3.1G  99% /people/j
nil:/scratch   62G   60G  1.1G  99% /scratch
nil:/irus  40G   38G  2.0G  95% /net/nil/irus
nil:/local 40G   38G  2.0G  95% /localaparc.annot.ctab

The subject is not an average subject but is part of an Alzheimer's study.
I have not done any manual interventions/corrections in freesurfer (maybe I
should at this stage).
I am just running the commands for a first try.

Thanks,
john

On Tue, May 26, 2009 at 3:13 PM, Douglas N Greve
wrote:

> Can you verify that the disk it is writing to is not full?
>
> Is this an average subject?
>
> doug
>
> John Drozd wrote:
>
>> Hello again,
>>
>> Sorry, I forgot to include the required info:
>>
>> john
>>
>> FREESURFER_HOME: /trumpet/downloads/FreeSurfer/freesurfer
>>
>> Build stamp: freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0
>>
>> RedHat release: Fedora release 10 (Cambridge)
>>
>> Kernel info: Linux 2.6.27.21-170.2.56.fc10.x86_64 x86_64
>>
>> -
>> Please include the following additional information in your report:
>>
>>  1) subject name: convertedfile
>>
>>  2) the entire command-line executed:
>>  mris_anatomical_stats -mgz -f ../stats/lh.aparc.stats -b -a
>> ../label/lh.aparc.annot -cf ../label/aparc.annot.ctab convertedfile lh
>>
>>  3) the error message generated:
>>  Segmentation fault
>>
>>  4) optionally include the subject's /script/recon-all.log
>>
>>
>> On Tue, May 26, 2009 at 2:23 PM, John Drozd > john.dr...@gmail.com>> wrote:
>>
>>Hello,
>>
>>I am running the reconall steps individually for a firts try.
>>
>>I noticed that I get a segmentation fault when I run
>>mris_anatomical_stats as whown below:
>>
>>[jdr...@trumpet mri]$ mris_anatomical_stats -mgz -f
>>../stats/lh.aparc.stats -b -a ../label/lh.aparc.annot -cf
>>../label/aparc.annot.ctab convertedfile lh
>>  INFO: assuming MGZ format for
>>volumes.  computing
>> statistics for each annotation in ../label/lh.aparc.annot.
>>reading volume
>>
>>  
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/wm.mgz...
>>reading input surface
>>
>>  
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
>>reading input pial surface
>>
>>  
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.pial...
>>reading input white surface
>>
>>  
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
>>reading colortable from annotation file...
>>colortable with 35 entries read (originally
>>
>>  /space/amaebi/26/users/buckner_cortical_atlas/scripts/colortable_final.txt)
>>Saving annotation colortable ../label/aparc.annot.ctab
>>
>>table columns are:
>>number of vertices
>>total surface area (mm^2)
>>total gray matter volume (mm^3)
>>average cortical thickness +- standard deviation (mm)
>>integrated rectified mean curvature
>>integrated rectified Gaussian curvature
>>folding index
>>intrinsic curvature index
>>structure name
>>
>>Segmentation fault
>>
>>john
>>
>>
>> 
>>
>> ___
>> Freesurfer mailing list
>> Freesurfer@nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>>
>
> --
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> gr...@nmr.mgh.harvard.edu
> Phone Number: 617-724-2358 Fax: 617-726-7422
>
> In order to help us help you, please follow the steps in:
> surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
>
>
>
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Re: [Freesurfer] Re: segmentation fault when running mris_anatomical_stats

2009-05-26 Thread John Drozd
Hi Doug,

./stats/lh.aparc.stats does NOT exist, but it still seg faulted when I have
chmod'd -R 777 the mri directory recursively.

john

On Tue, May 26, 2009 at 3:43 PM, Douglas N Greve
wrote:

> Does ../stats/lh.aparc.stats exist and do you have write perms to the file
> and directory?
>
> John Drozd wrote:
>
>> Hi Doug,
>>
>> It is writing to the trumpet directory which is not full.
>> It does write out the output file aparc.annot.ctab, but seg faults at the
>> end.
>>
>> Here is the df -h output for the trumpet directory (775Gb are available):
>>
>> [jdr...@trumpet label]$ df -h
>> FilesystemSize  Used Avail Use% Mounted on
>> /dev/md2   50G  7.7G   40G  17% /
>> /dev/md3  862G   43G  775G   6% /trumpet
>> /dev/md0  122M   21M   95M  19% /boot
>> tmpfs 3.0G  952K  3.0G   1% /dev/shm
>> nil:/people/j 185G  180G  3.1G  99% /people/j
>> nil:/scratch   62G   60G  1.1G  99% /scratch
>> nil:/irus  40G   38G  2.0G  95% /net/nil/irus
>> nil:/local 40G   38G  2.0G  95% /localaparc.annot.ctab
>>
>> The subject is not an average subject but is part of an Alzheimer's study.
>> I have not done any manual interventions/corrections in freesurfer (maybe
>> I should at this stage).
>> I am just running the commands for a first try.
>>
>> Thanks,
>> john
>>
>> On Tue, May 26, 2009 at 3:13 PM, Douglas N Greve <
>> gr...@nmr.mgh.harvard.edu <mailto:gr...@nmr.mgh.harvard.edu>> wrote:
>>
>>Can you verify that the disk it is writing to is not full?
>>
>>Is this an average subject?
>>
>>doug
>>
>>John Drozd wrote:
>>
>>Hello again,
>>
>>Sorry, I forgot to include the required info:
>>
>>john
>>
>>FREESURFER_HOME: /trumpet/downloads/FreeSurfer/freesurfer
>>
>>Build stamp: freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0
>>
>>RedHat release: Fedora release 10 (Cambridge)
>>
>>Kernel info: Linux 2.6.27.21-170.2.56.fc10.x86_64 x86_64
>>
>>
>>  -
>>Please include the following additional information in your
>>report:
>>
>> 1) subject name: convertedfile
>>
>> 2) the entire command-line executed:
>> mris_anatomical_stats -mgz -f ../stats/lh.aparc.stats -b
>>-a ../label/lh.aparc.annot -cf ../label/aparc.annot.ctab
>>convertedfile lh
>>
>> 3) the error message generated:
>> Segmentation fault
>>
>> 4) optionally include the subject's /script/recon-all.log
>>
>>
>>On Tue, May 26, 2009 at 2:23 PM, John Drozd
>>mailto:john.dr...@gmail.com>
>><mailto:john.dr...@gmail.com <mailto:john.dr...@gmail.com>>>
>>
>>wrote:
>>
>>   Hello,
>>
>>   I am running the reconall steps individually for a firts try.
>>
>>   I noticed that I get a segmentation fault when I run
>>   mris_anatomical_stats as whown below:
>>
>>   [jdr...@trumpet mri]$ mris_anatomical_stats -mgz -f
>>   ../stats/lh.aparc.stats -b -a ../label/lh.aparc.annot -cf
>>   ../label/aparc.annot.ctab convertedfile lh
>> INFO: assuming MGZ format for
>>   volumes.
>> computing statistics for each annotation in
>>../label/lh.aparc.annot.
>>   reading volume
>>
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/wm.mgz...
>>   reading input surface
>>
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
>>   reading input pial surface
>>
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.pial...
>>   reading input white surface
>>
>> /trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...
>>   reading colortable from annotation file...
>>   colortable with 35 entries read (originally
>>
>> /space/amaebi/26/users/buckner_cortical_atlas/scripts/colortable_final.txt)
>>   Saving annotation colortable ../label/aparc.annot.ctab
>>
>>   table columns are:
>>

Re: [Freesurfer] Re: segmentation fault when running mris_anatomical_stats

2009-05-26 Thread John Drozd
Hi Doug,

I fixed the problem. i had given the path ../stats when I should have used
./stats.

Now it works:

[jdr...@trumpet mri]$ mris_anatomical_stats -mgz -f ./stats/lh.aparc.stats
-b -a ../label/lh.aparc.annot -cf ../label/aparc.annot.ctab convertedfile
lh
INFO: assuming MGZ format for
volumes.
computing statistics for each annotation in
../label/lh.aparc.annot.
reading volume
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/mri/wm.mgz...

reading input surface
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...

reading input pial surface
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.pial...

reading input white surface
/trumpet/downloads/FreeSurfer/freesurfer/subjects/buckner_data/tutorial_subjs/convertedfile/surf/lh.white...

reading colortable from annotation
file...
colortable with 35 entries read (originally
/space/amaebi/26/users/buckner_cortical_atlas/scripts/colortable_final.txt)

Saving annotation colortable
../label/aparc.annot.ctab

table columns are:
number of vertices
total surface area (mm^2)
total gray matter volume (mm^3)
average cortical thickness +- standard deviation (mm)
integrated rectified mean curvature
integrated rectified Gaussian curvature
folding index
intrinsic curvature index
structure name

11531   7108  11411  1.451 1.619 0.114 0.089  36637.0
unknown
 1295891   2178  2.425 0.532 0.117 0.028   11 1.6
bankssts
  974704   1943  2.590 0.832 0.154 0.042   19 1.8
caudalanteriorcingulate

 3260   2212   5748  2.385 0.505 0.125 0.049   55 8.0
caudalmiddlefrontal

 1872   1196   2383  1.811 0.445 0.147 0.051   28 4.0
cuneus
  693467   2361  3.584 0.791 0.147 0.088   15 2.6
entorhinal
 4796   3279   9604  2.589 0.699 0.147 0.053   90 9.8
fusiform
 6161   4063  10836  2.339 0.646 0.137 0.052   9211.4
inferiorparietal
 5067   3375  10530  2.586 0.756 0.152 0.064  11813.1
inferiortemporal
 1081705   1860  2.360 0.767 0.153 0.063   22 2.6
isthmuscingulate
 9902   6468  15926  2.218 0.616 0.158 0.063  18423.8
lateraloccipital
 3797   2613   7013  2.505 0.749 0.159 0.113  246 9.2
lateralorbitofrontal
 3856   2526   5376  1.978 0.679 0.155 0.071  16311.9
lingual
 2341   1578   3433  2.080 0.657 0.134 0.038   35 4.0
medialorbitofrontal
 4354   2924   9107  2.554 0.666 0.144 0.046   78 8.0
middletemporal
  769504   1623  2.774 0.850 0.113 0.0358 1.0
parahippocampal
 2055   1262   3268  2.334 0.684 0.112 0.038   31 3.8
paracentral
 2055   1402   3801  2.422 0.485 0.125 0.034   25 2.9
parsopercularis
 1020701   1920  2.208 0.573 0.177 0.076   25 3.7
parsorbitalis
 1792   1213   2899  2.136 0.498 0.126 0.035   23 2.7
parstriangularis
 2111   1441   2038  1.504 0.381 0.158 0.067   34 6.2
pericalcarine
 6149   3918   7916  1.801 0.569 0.115 0.037   73 9.4
postcentral
 1685   1152   3253  2.559 0.744 0.175 0.072   45 5.2
posteriorcingulate
 7186   4460  12819  2.523 0.621 0.112 0.040   9110.8
precentral
 4656   3134   7658  2.347 0.599 0.141 0.041   63 7.7
precuneus
  981704   2271  2.797 0.920 0.174 0.080   25 3.1
rostralanteriorcingulate
 8129   5573  13843  2.126 0.559 0.146 0.052  14716.5
rostralmiddlefrontal
10613   7339  19998  2.361 0.608 0.134 0.044  15017.1
superiorfrontal
10405   6830  17061  2.194 0.647 0.133 0.038  13815.6
superiorparietal
 5177   3505  10352  2.580 0.610 0.119 0.054   58 6.5
superiortemporal
 5240   3516   9413  2.368 0.520 0.136 0.093  293 9.9
supramarginal
  342235766  2.442 0.556 0.203 0.082   12 1.3
frontalpole
  667458   2300  3.769 0.639 0.143 0.0499 1.4
temporalpole
  679385913  2.282 0.333 0.124 0.0477 1.1
transversetemporal

Thanks for all your help.

john

On Tue, May 26, 2009 at 3:43 PM, Douglas N Greve
wrote:

> Does ../stats/lh.aparc.stats exist and do you have write perms to the file
> and directory?
>
> John Drozd wrote:
>
>> Hi Doug,
>>
>> It is writing to the trumpet directory which is not full.
>> It does write out the output file aparc.annot.ctab, but seg faults at the
>> end.
>>
>> Here is the df -h output for the trumpet directory (775Gb are available):
>>
>> [jdr...@trumpet label]$ df -h
>> FilesystemSize  Used Avail Use% Mounted on
>> /dev/md2   50G  7.7G

[Freesurfer] source code for FreeSurfer and comparison with Neuroquant

2009-05-27 Thread John Drozd
Hello,

I am reviewing the papers outlined in the "FreeSurfer Analysis Pipeline
Overview".
I would find it helpful if I could download the source code for FreeSurfer.
Please let me know if this is at all possible.

Also I was wondering how different Cortech's commercial sister program to
FreeSurfer called Neuroquant is from FreeSurfer?
Other than Neuroquant being able to be used clinically, I was wondering if
the functionality is different.

Thank you for your time,

John Drozd
Postdoctoral Fellow
Robarts Research Institute
Medical Imaging Department
The University of Western Ontario
London, Ontario, Canada
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[Freesurfer] Invitation to connect on LinkedIn

2010-02-08 Thread John Drozd
LinkedIn


   
Freesurfer,

I'd like to add you to my professional network on LinkedIn.

- John

Confirm that you know John Drozd
https://www.linkedin.com/e/isd/1058664165/nSlXVFJx/



 
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[Freesurfer] measuring cortical thickness using FreeSurfer

2011-07-05 Thread John Drozd
Hi,

I am running freesurfer on 64 bit Fedora 10 linux.
I am using version:  freesurfer-Linux-centos4_x86_64-stable-pub-v4.3.0.
Can anyone point me to a reference web page listing what steps I need to
type to process
a series of MRI dicom slices and use FreeSurfer to measure cortical
thickness for this dicom series?

Thank you,
John

-- 
John Drozd
Post-Doctoral Fellow, Robarts Research Institute
The University of Western Ontario
London, ON, Canada
http://publish.uwo.ca/~jdrozd2/index.htm
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contains patient information, please contact the Partners Compliance HelpLine at
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Re: [Freesurfer] measuring cortical thickness using FreeSurfer

2011-07-05 Thread John Drozd
Hi Bruce and Pedro,

Thank you both for sending me your suggestions.
Just to let you know, because my .dcm (dicom) files had a space and two dots
in the filenames:
(e.g. "2008_12_08.ek -0035-0001-1.dcm" )
(and using quotes around the file name or "\ " within the filename without
the quotes did not work with recon-all), recon-all truncated the filename
before the space as "2008_12_08.ek" feeding it to an mri_convert command and
gave an error message.

So I worked around this problem as follows: I converted the .dcm series to a
nifti .nii volume using 3D Slicer, and then used mri_convert to convert the
.nii format to .mgz format.  Then I ran recon-all on the .mgz formatted file
and it is now running successfully.

I see on the online tutorials and slides, that this process takes about 20
hours. Is there a way to only run partial steps pertaining only to the
cortical thickness?

Pedro also suggested that I go through the FreeSurferBeginnersGuide wiki
which I am doing now.

Also, reading some mailing lists emails, I noticed that matlab can be used
to analyze the cortical thickness statistiics, and also freesurfer comes
with matlab scripts.  I will try these tools out as well.

Thank you for your time,
John

On Tue, Jul 5, 2011 at 1:18 PM, Bruce Fischl wrote:

> recon-all \
>-i  \
>-s  \
>-sd  \
>-all
>
>
> cheers
> Bruce
>
>
>
> On Tue, 5 Jul 2011, John Drozd wrote:
>
>  Hi,
>>
>> I am running freesurfer on 64 bit Fedora 10 linux.
>> I am using version:  freesurfer-Linux-centos4_x86_**64-stable-pub-v4.3.0.
>> Can anyone point me to a reference web page listing what steps I need to
>> type to process
>> a series of MRI dicom slices and use FreeSurfer to measure cortical
>> thickness for this dicom series?
>>
>> Thank you,
>> John
>>
>> --
>> John Drozd
>> Post-Doctoral Fellow, Robarts Research Institute
>> The University of Western Ontario
>> London, ON, Canada
>> http://publish.uwo.ca/~**jdrozd2/index.htm<http://publish.uwo.ca/%7Ejdrozd2/index.htm>
>>
>>
>>
>>
> ___
> Freesurfer mailing list
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> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>
>
> The information in this e-mail is intended only for the person to whom it
> is
> addressed. If you believe this e-mail was sent to you in error and the
> e-mail
> contains patient information, please contact the Partners Compliance
> HelpLine at
> http://www.partners.org/complianceline . If the e-mail was sent to you in
> error
> but does not contain patient information, please contact the sender and
> properly
> dispose of the e-mail.
>
>


-- 
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Post-Doctoral Fellow, Robarts Research Institute
The University of Western Ontario
London, ON, Canada
http://publish.uwo.ca/~jdrozd2/index.htm
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but does not contain patient information, please contact the sender and properly
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Re: [Freesurfer] measuring cortical thickness using FreeSurfer

2011-07-05 Thread John Drozd
Hi Bruce,

Okay, thank you. I understand and can see that to do an accurate job, the
pipeline must be complicated.
I have eight processors on my linux desktop computer.
Maybe some parts of recon-all are multi-threaded which could speed things up
for me :-)

Thank you,
John

2011/7/5 Bruce Fischl 

> sorry, but the majority of the time is required. We're working to speed
> things up, but it is complicated software with multiple nonlinear warps,
> segmentation procedures, etc
>
>
> Bruce
>
>
>
> On Tue, 5 Jul 2011, John Drozd wrote:
>
>  Hi Bruce and Pedro,
>>
>> Thank you both for sending me your suggestions.
>> Just to let you know, because my .dcm (dicom) files had a space and two
>> dots
>> in the filenames:
>> (e.g. "2008_12_08.ek -0035-0001-1.dcm" )
>> (and using quotes around the file name or "\ " within the filename without
>> the quotes did not work with recon-all), recon-all truncated the filename
>> before the space as "2008_12_08.ek" feeding it to an mri_convert command
>> and
>> gave an error message.
>>
>> So I worked around this problem as follows: I converted the .dcm series to
>> a
>> nifti .nii volume using 3D Slicer, and then used mri_convert to convert
>> the
>> .nii format to .mgz format.  Then I ran recon-all on the .mgz formatted
>> file
>> and it is now running successfully.
>>
>> I see on the online tutorials and slides, that this process takes about 20
>> hours. Is there a way to only run partial steps pertaining only to the
>> cortical thickness?
>>
>> Pedro also suggested that I go through the FreeSurferBeginnersGuide wiki
>> which I am doing now.
>>
>> Also, reading some mailing lists emails, I noticed that matlab can be used
>> to analyze the cortical thickness statistiics, and also freesurfer comes
>> with matlab scripts.  I will try these tools out as well.
>>
>> Thank you for your time,
>> John
>>
>> On Tue, Jul 5, 2011 at 1:18 PM, Bruce Fischl 
>> wrote:
>>  recon-all \
>> -i  \
>> -s  \
>> -sd  \
>> -all
>>
>>
>>  cheers
>>  Bruce
>>
>>
>>
>> On Tue, 5 Jul 2011, John Drozd wrote:
>>
>>  Hi,
>>
>>  I am running freesurfer on 64 bit Fedora 10 linux.
>>  I am using version:
>>  freesurfer-Linux-centos4_x86_**64-stable-pub-v4.3.0.
>>  Can anyone point me to a reference web page listing what
>>  steps I need to
>>  type to process
>>  a series of MRI dicom slices and use FreeSurfer to measure
>>  cortical
>>  thickness for this dicom series?
>>
>>  Thank you,
>>  John
>>
>>  --
>>  John Drozd
>>  Post-Doctoral Fellow, Robarts Research Institute
>>  The University of Western Ontario
>>  London, ON, Canada
>>  
>> http://publish.uwo.ca/~**jdrozd2/index.htm<http://publish.uwo.ca/%7Ejdrozd2/index.htm>
>>
>>
>>
>>
>> __**_
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-- 
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Post-Doctoral Fellow, Robarts Research Institute
The University of Western Ontario
London, ON, Canada
http://publish.uwo.ca/~jdrozd2/index.htm
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Re: [Freesurfer] measuring cortical thickness using FreeSurfer

2011-07-05 Thread John Drozd
Hi Bruce,

Thanks for the suggestion, Bruce. I'll run 8 different subjects at once.

Take care,
John

2011/7/5 Bruce Fischl 

> Sorry, that won't help a single subject much, although there are options to
> run the hemis in parallel. You can run multiple subjects at the same time,
> which is what we usually do. Or you can use cuss
>
>
>
> On Jul 5, 2011, at 5:11 PM, John Drozd  wrote:
>
> Hi Bruce,
>
> Okay, thank you. I understand and can see that to do an accurate job, the
> pipeline must be complicated.
> I have eight processors on my linux desktop computer.
> Maybe some parts of recon-all are multi-threaded which could speed things
> up for me :-)
>
> Thank you,
> John
>
> 2011/7/5 Bruce Fischl < 
> fis...@nmr.mgh.harvard.edu>
>
>> sorry, but the majority of the time is required. We're working to speed
>> things up, but it is complicated software with multiple nonlinear warps,
>> segmentation procedures, etc
>>
>>
>> Bruce
>>
>>
>>
>> On Tue, 5 Jul 2011, John Drozd wrote:
>>
>>  Hi Bruce and Pedro,
>>>
>>> Thank you both for sending me your suggestions.
>>> Just to let you know, because my .dcm (dicom) files had a space and two
>>> dots
>>> in the filenames:
>>> (e.g. "2008_12_08.ek -0035-0001-1.dcm" )
>>> (and using quotes around the file name or "\ " within the filename
>>> without
>>> the quotes did not work with recon-all), recon-all truncated the filename
>>> before the space as "2008_12_08.ek" feeding it to an mri_convert command
>>> and
>>> gave an error message.
>>>
>>> So I worked around this problem as follows: I converted the .dcm series
>>> to a
>>> nifti .nii volume using 3D Slicer, and then used mri_convert to convert
>>> the
>>> .nii format to .mgz format.  Then I ran recon-all on the .mgz formatted
>>> file
>>> and it is now running successfully.
>>>
>>> I see on the online tutorials and slides, that this process takes about
>>> 20
>>> hours. Is there a way to only run partial steps pertaining only to the
>>> cortical thickness?
>>>
>>> Pedro also suggested that I go through the FreeSurferBeginnersGuide wiki
>>> which I am doing now.
>>>
>>> Also, reading some mailing lists emails, I noticed that matlab can be
>>> used
>>> to analyze the cortical thickness statistiics, and also freesurfer comes
>>> with matlab scripts.  I will try these tools out as well.
>>>
>>> Thank you for your time,
>>> John
>>>
>>> On Tue, Jul 5, 2011 at 1:18 PM, Bruce Fischl <
>>> fis...@nmr.mgh.harvard.edu>
>>> wrote:
>>>  recon-all \
>>> -i  \
>>> -s  \
>>> -sd  \
>>> -all
>>>
>>>
>>>  cheers
>>>  Bruce
>>>
>>>
>>>
>>> On Tue, 5 Jul 2011, John Drozd wrote:
>>>
>>>  Hi,
>>>
>>>  I am running freesurfer on 64 bit Fedora 10 linux.
>>>  I am using version:
>>>  freesurfer-Linux-centos4_x86_**64-stable-pub-v4.3.0.
>>>  Can anyone point me to a reference web page listing what
>>>  steps I need to
>>>  type to process
>>>  a series of MRI dicom slices and use FreeSurfer to measure
>>>  cortical
>>>  thickness for this dicom series?
>>>
>>>  Thank you,
>>>  John
>>>
>>>  --
>>>  John Drozd
>>>  Post-Doctoral Fellow, Robarts Research Institute
>>>  The University of Western Ontario
>>>  London, ON, Canada
>>>   <http://publish.uwo.ca/%7Ejdrozd2/index.htm>
>>> http://publish.uwo.ca/~**jdrozd2/index.htm
>>>
>>>
>>>
>>>
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