Dear Freesurfers,
I have run several subjects using the -T2pial flag, to correct for dura. For several subjects the pial surface was badly positioned after the -T2pial flag was used (these errors did not occur when the flag was not used, in the same subject, see PDF, left vs right panel).
I was wondering if adding this flag might be problematic in some patient groups, like cerebrovascular disease or multiple sclerosis, with regard to T2 (hyperintense) lesions.
Best, Ruthger
Hi Ruthger,
I've only tested the deformation on T2-space, and mostly with a flair inversion pulse, so it is probably the case that it doesn't work well with your sequence. If you want to upload the data I'll try to take a look, but it probably won't be soon
sorry Bruce
On Mon, 14 Apr 2014, Righart, Ruthger wrote:
Dear Freesurfers,
I have run several subjects using the -T2pial flag, to correct for dura. For several subjects the pial surface was badly positioned after the -T2pial flag was used (these errors did not occur when the flag was not used, in the same subject, see PDF, left vs right panel).
I was wondering if adding this flag might be problematic in some patient groups, like cerebrovascular disease or multiple sclerosis, with regard to T2 (hyperintense) lesions.
Best, Ruthger
Hi Bruce, Thank you very much for your prompt reply. It would be great if you could take a look. Would you need anything more than the original t1.nii and t2.nii? Best, Ruthger
Le 2014-04-14 16:18, Bruce Fischl a écrit :
Hi Ruthger,
I've only tested the deformation on T2-space, and mostly with a flair inversion pulse, so it is probably the case that it doesn't work well with your sequence. If you want to upload the data I'll try to take a look, but it probably won't be soon
sorry Bruce
On Mon, 14 Apr 2014, Righart, Ruthger wrote:
Dear Freesurfers,
I have run several subjects using the -T2pial flag, to correct for dura. For several subjects the pial surface was badly positioned after the -T2pial flag was used (these errors did not occur when the flag was not used, in the same subject, see PDF, left vs right panel).
I was wondering if adding this flag might be problematic in some patient groups, like cerebrovascular disease or multiple sclerosis, with regard to T2 (hyperintense) lesions.
Best, Ruthger
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I guess it would be easiest if you upload the entire subject directory, plus the T2
On Mon, 14 Apr 2014, Righart, Ruthger wrote:
Hi Bruce, Thank you very much for your prompt reply. It would be great if you could take a look. Would you need anything more than the original t1.nii and t2.nii? Best, Ruthger
Le 2014-04-14 16:18, Bruce Fischl a écrit :
Hi Ruthger,
I've only tested the deformation on T2-space, and mostly with a flair inversion pulse, so it is probably the case that it doesn't work well with your sequence. If you want to upload the data I'll try to take a look, but it probably won't be soon
sorry Bruce
On Mon, 14 Apr 2014, Righart, Ruthger wrote:
Dear Freesurfers,
I have run several subjects using the -T2pial flag, to correct for dura. For several subjects the pial surface was badly positioned after the -T2pial flag was used (these errors did not occur when the flag was not used, in the same subject, see PDF, left vs right panel).
I was wondering if adding this flag might be problematic in some patient groups, like cerebrovascular disease or multiple sclerosis, with regard to T2 (hyperintense) lesions.
Best, Ruthger
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@nmr.mgh.harvard.edu
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Bruce Fischl -
Righart, Ruthger