External Email - Use Caution
Hmm. Does the orig.mgz show correctly if you just bring it up in freeview (as opposed to using tkregisterfv)? Also, can you send us the recon-all.log?
From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu On Behalf Of Krystal Xiwing Yau Sent: Monday, June 19, 2023 10:20 PM To: Freesurfer support list freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] [FreeSurfer] Talairach Failure Detection
External Email - Use Caution
Dear Bruce,
Thank you so much for your reply.
The original image is a T1 image in nifti format.
Yes, 001.mgz image looks fine. It shows the correct view whichever I selected:
[cid:image006.png@01D9A358.872097D0]
The images are processed in a server by batches - there are 1-2 images have error, while the rest are fine in the same batch. Please kindly advise.
Thank you very much again for your help.
Best regards,
Krystal
________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Fischl, Bruce R.,PHD <BFISCHL@MGH.HARVARD.EDUmailto:BFISCHL@MGH.HARVARD.EDU> Sent: 19 June 2023 21:48:08 To: Freesurfer support list Subject: Re: [Freesurfer] [FreeSurfer] Talairach Failure Detection
External Email - Use Caution What was the format of your original image? This generally means that the direction cosines were incorrect in it. Don't worry about the resampling artifacts - that is because it is interpolating the 001.mgz into the voxel space of the orig.mgz. If you load the 001.mgz without the orig it will look fine. Are you sure that the 001.mgz looks fine in all views (like are inferior/superior correct)?
Cheers Bruce
From: freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu <freesurfer-bounces@nmr.mgh.harvard.edumailto:freesurfer-bounces@nmr.mgh.harvard.edu> On Behalf Of Krystal Xiwing Yau Sent: Monday, June 19, 2023 3:51 AM To: freesurfer@nmr.mgh.harvard.edumailto:freesurfer@nmr.mgh.harvard.edu Subject: [Freesurfer] [FreeSurfer] Talairach Failure Detection
External Email - Use Caution
Dear Freesurfer experts,
I would like to seek for help regarding talairach error. I have browsed through the forum about it but still not solving my problem...
The following steps are the solutions I have tried:
* Re-run recon-all with -notal-check * Re-run recon-all with -notalairach
* The above flags gave the same error message as follow: * WARNING2: gca.c::GCAhistoScaleImageIntensities: h_mri->nbins=100, mri_peak=108 after smoothing, mri peak at 0, scaling input intensities by inf error: Numerical result out of range error: GCAhistoScaleImageIntensities: could not find wm peak Command exited with non-zero status 252
* Ran the command to fix the registration: tkregisterfv --s Sub-108 --fstal --no-surfs
* The view for this subject is weird because it shows the axial view when the coronal view is selected * [cid:image007.png@01D9A358.872097D0] * The correct view showed up when the coronal view is selected * [cid:image008.png@01D9A358.872097D0]
When I viewed 001.mgz in Freeview, there was no such problem. However, some artifact (i.e. the weird lines) occurred in certain slices, as circled in pink:
[cid:image009.png@01D9A358.872097D0]
[cid:image010.png@01D9A358.872097D0]
[cid:image011.png@01D9A358.872097D0]
I am not sure how to fix it with tkregisterfv and what are the standards for it.
It would be so much appreciated if someone could help out with this issue.
Regards, Krystal
Tel.: +852 2255 5024 Fax: +852 2872 5828 Address: Room 304, 3/F, New Clinical Building, 102 Pokfulam Road, Hong Kong.
