oh yes, it's grabbing a bit of dura. If you have a 1mm-ish T2 or FLAIR
you can use it to automatically correct this type of problem. Or you can
erase the dura in those regions on the brainmask.mgz and recreate the pial
surface
cheers
Bruce
On Wed, 8 Feb 2017, 冉倩 wrote:
Hi Bruce,
Thanks for your reply.
[IMAGE]
For this, I think pial surface (the location where I circle) already
located outside of brain.
[IMAGE]
For this, pail surface (near hippcamps I think) located inside of cortical I
think.
I mean if I manually modify surface, how do it? Thanks very much!
Best Regards,
Qian Ran
At 2017-02-08 09:54:30, "Bruce Fischl" <fis...@nmr.mgh.harvard.edu> wrote:
>Hi Qian
>
>I'm not sure I understand what you think is wrong in the images you
>included. The first two locations look quite accurate to me, and I'm not
>positive but I think the third image the locations you circle are amygdala,
>so not neocortical at all
>
>cheers
>Bruce
>
>
>
>
>
>On Wed, 8 Feb 2017, 冉倩 wrote:
>
>>
>>
>> Dear Prof.Douglas Greve,
>> Thanks for your reply. I add parts of problem screenshot of white/pial
>> surface.
>>
>> When I did freesurfer for structure analysis, I was confused by some st
eps
>> and results. The analysis stream was:
>>
>> 1st: check data orientation
>>
>> 2nd : convert nii.gz to mgz
>>
>> 3rd: recon-all –all –subjid sub01
>>
>> After these steps finished , I checked skullstrip, segmentation quality.
The
>> problems as following:
>>
>> 1st: skullstrip result not very well, almost need manually operation.
>>
>> After manually operation, I run:
>>
>> recon-all –autorecon2 –autorecon3 –subjid sub01
>>
>> 2nd: parts of white surface and pial surface not very exactly. I only did
>> adding control points to modify white surface, then I run:
>>
>> Recon-all –autorecon2-cp –autorecon3 –subjid sub01 brainmask.mgz
>>
>> Several parts of pial surface exit errors. I added these as screenshot:
>>
>>
>>
>>
>> [IMAGE]
>>
>> [IMAGE]
>> [IMAGE]
>> [IMAGE]
>>
>> [IMAGE]
>>
>> So when I met such issues, I should add control points for pial surface
as
>> white surface did (or how I correct or edit pial; still use tkmedit tool?
) ?
>> Then I run:
>>
>> recon-all –autorecon2-pial –autorecon3 sub01 ?
>>
>> If white surface and pial surface all needed manually operated, whether I
>> could do like this: I add control points (-cp), edit wm (-wm), correct pi
al
>> (-pial ) at the same time, then I run:
>>
>> recon-all –autorecon2-cp –autorecon2-wm –autorecon2-pail –autorecon3 sub0
1
>> or recon-all -autorecon2-cp brainmask.mgz -autorecon2-wm -autorecon2-pial
>> -autorecon3 sub01?
>>
>> or any other suggestions?
>>
>> Thanks very much!
>> Best Regards,
>> Qian Ran
>>
>> At 2017-02-08 07:18:51, "Douglas Greve" <gr...@nmr.mgh.harvard.edu> wrote
:
>>
>> Hi Qian, things will be a lot easier if you imbed your comments
>> and images in the email. From the text, I can't tell what you
>> want exactly. The first question had to do with skull stripping.
>> It looks like you had to make a manual edit. This is expected
>> sometimes. If it is more than that, what is the problem. In the
>> second question, you had some problem with the quality of the
>> white/pial surfaces, but there was not much detail or a picture.
>>
>>
>>
>> On 2/7/17 8:22 AM, 冉倩 wrote:
>> Hello Freesurfer Developers,
>> I have had last September Freesurfer course. When I operated my
>> data following that stream I met some problem in reon-all -all
>> step. Because I need put some screenshout to exaplain that
>> problems, I add word document in attachment. Thanks very much!
>> Best Regards,
>> Qian Ran
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Freesurfer mailing list
>> Freesurfer@nmr.mgh.harvard.edu
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>>
>>
>>
>>
>>
>>
>>
>>
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