External Email - Use Caution        

While I guess it’d technically be possible to use the SAMSEG tools to obtain an 
initial ASEG, and then modify the hippocampal tool slightly to accommodate this 
change, I think that I’ll say that no, at this moment it is not possible – but 
maybe we should look into this in the future.
Sorry if this is not the answer you’d have liked to hear…
/E

--
Juan Eugenio Iglesias

ERC Senior Research Fellow
Centre for Medical Image Computing (CMIC)
University College London, and
Research Affiliate
Computer Science and Artificial Intelligence Laboratory (CSAIL)
Massachusetts Institute of Technology

http://www.jeiglesias.com



From: <freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of qimo601 
<qimo...@126.com>
Reply-To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Date: Tuesday, 27 November 2018 at 00:29
To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Subject: Re: [Freesurfer] segmentHA_T2.sh: amygdala recon-all command stoped.


        External Email - Use Caution


Dear Juan Eugenio Iglesias:
       Thanks for the response.
        I have a question about T1 and T2 data, whether they must be scanned by 
the same patient?
        Because I have no T1 sequence data. If i want to get the hippocampal 
subfields of T2 data, can I use T1 data of  patient A  to recon-all and T2 data 
of another patient B to segment ?

        Thank you very much.
        Confused beginner.
        Qimo


At 2018-11-26 23:45:17, "Iglesias Gonzalez, Eugenio" <e.igles...@ucl.ac.uk> 
wrote:


        External Email - Use Caution
Dear Qimo,
You do need a T1 volume to run the main recon-all; sorry if the wiki wasn’t 
clear enough. It is true that segmenta_T2.sh only uses the intensities of the 
FLAIR scan, but a  recon-all processed T1 is still necessary.
Cheers,
/E

--
Juan Eugenio Iglesias

ERC Senior Research Fellow
Centre for Medical Image Computing (CMIC)
University College London, and
Research Affiliate
Computer Science and Artificial Intelligence Laboratory (CSAIL)
Massachusetts Institute of Technology

http://www.jeiglesias.com



From: 
<freesurfer-boun...@nmr.mgh.harvard.edu<mailto:freesurfer-boun...@nmr.mgh.harvard.edu>>
 on behalf of qimo601 <qimo...@126.com<mailto:qimo...@126.com>>
Reply-To: Freesurfer support list 
<freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>>
Date: Monday, 26 November 2018 at 06:49
To: "freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>" 
<freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>>
Subject: [Freesurfer] segmentHA_T2.sh: amygdala recon-all command stoped.


        External Email - Use Caution

hi,FreeSurfer experts.
I am trying to use segmentHA_T2.sh command to segment the T2 FLAIR Sequence MRI 
Data.
Also I am now only having T2 Data.
But there was a mistake in the first step. Sincerely ask for help.

(1)First I use recon-all command to generate the subject file from my nii 
file.But it stop in Correct Defect step.
I have run three times after 48 hours. It also stop there.
I dont't know why.
Can you help me?

my command:
recon-all -all -i nii-004/ADNI_004_3D_FLAIR.nii.gz -s Subj004 -itkthreads 4

The output of the terminal is as follows:
CORRECTING DEFECT 45 (vertices=24, convex hull=53, v0=135114)
After retessellation of defect 45 (v0=135114), euler #=96 (83072,238273,155297) 
: difference with theory (-19) = -115
CORRECTING DEFECT 46 (vertices=97, convex hull=30, v0=136402)
After retessellation of defect 46 (v0=136402), euler #=97 (83078,238301,155320) 
: difference with theory (-18) = -115
CORRECTING DEFECT 47 (vertices=74, convex hull=24, v0=138982)
After retessellation of defect 47 (v0=138982), euler #=98 (83088,238338,155348) 
: difference with theory (-17) = -115
CORRECTING DEFECT 48 (vertices=83, convex hull=55, v0=139717)
After retessellation of defect 48 (v0=139717), euler #=99 (83098,238391,155392) 
: difference with theory (-16) = -115
CORRECTING DEFECT 49 (vertices=141431, convex hull=17606, v0=149662)

(2)Because of the above mistakes, I haven't tried the next step yet.
segmentHA_T2.sh subject004 ADNI_004_3D_FLAIR.nii.gz  T2 0

(3)Attached is the log(recon-all.log).

(4)My envientment as follows:
Ubuntu 16.04 amd_x64
freesurfer-linux-centos6_x86_64-dev.tar.gz(21-Nov-2018)
My data type: 3D-FLAIR (Pixel Spacing X=1.0 mm; Pixel Spacing Y=1.0 mm; Pulse 
Sequence=SE/IR; Slice Thickness=1.2000000476837158 mm; TE=441.0 ms; TI=1650.0 
ms; TR=4800.0 ms; Weighting=T2;)




Thanks,

Qimo











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