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Hi,
What would be the command for hippocampal subfields using only the T2 images?
This?
recon-all -s <subject_name> -hippocampal-subfields-T2 <file name of additional scan> <analysisID>
I tried but obtained the following error
pcpb3846:~ lab1-rmn$ recon-all -s /Applications/freesurfer/subjects/4235_T2 -hippocampal-subfields-T2 T2 T2_3D_SAG
ERROR: cannot find T2
Darwin pcpb3846.inv.usc.es 15.6.0 Darwin Kernel Version 15.6.0: Tue Jan 30 11:45:51 PST 2018; root:xnu-3248.73.8~1/RELEASE_X86_64 x86_64
recon-all -s 4235_T2 exited with ERRORS at Fri May 4 10:43:04 CEST 2018
Thanks
cheers,
2018-05-04 10:00 GMT+02:00 Iglesias Gonzalez, Eugenio e.iglesias@ucl.ac.uk :
External Email - Use CautionSorry if I didn’t explain myself properly.
T2 scans of the whole head can be used by recon-all to improve the segmentation of the pial surface, but: a) They are not required (you can use the T1 alone); and b) Cannot be run through recon-all independently from the T1.
For hippocampal subfields: the T2 scan is used in a separate stream. In fact, their field of view doesn’t even have to cover the whole head – just the hippocampi (this is what the ADNI highres T2 protocol does).
Cheers,
/Eugenio
--
Juan Eugenio Iglesias
ERC Senior Research Fellow
Translational Imaging Group
University College London
*From: *freesurfer-bounces@nmr.mgh.harvard.edu on behalf of M Janani < jananimj@hcl.com> *Reply-To: *Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Date: *Friday, 4 May 2018 at 08:26 *To: *Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Subject: *Re: [Freesurfer] T2 weighted images as input for recon-all command
External Email - Use Caution *Thanks for your reply Eugenio.
You have mentioned like “No recon-all on the T2 required, as it's used in a different way”. May I know the actual purpose of using T2 images for reconstruction process. Why we should not T2 images as input for recon-all command.
Regards,
Janani
*From:* freesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@ nmr.mgh.harvard.edu] *On Behalf Of *Iglesias Gonzalez, Eugenio *Sent:* 04 May 2018 12:50 *To:* Freesurfer support list freesurfer@nmr.mgh.harvard.edu; Freesurfer support list freesurfer@nmr.mgh.harvard.edu *Subject:* Re: [Freesurfer] T2 weighted images as input for recon-all command
External Email - Use Caution *Hola Miguel Ángel,
First, you need to run the T1 through recon-all normally, as you have already done. Next, you run the subfield module with the highres T2 as input - no recon-all on the T2 required, as it's used in a different way.
Cheers
Eugenio
Sent from my phone, please excuse brevity and typos
*From:* freesurfer-bounces@nmr.mgh.harvard.edu < freesurfer-bounces@nmr.mgh.harvard.edu> on behalf of Miguel Ángel Rivas Fernández miguelrivasfdez@gmail.com *Sent:* Thursday, May 3, 2018 11:08:17 PM *To:* Freesurfer support list *Subject:* Re: [Freesurfer] T2 weighted images as input for recon-all command
External Email - Use Caution *Hi Freesurfer developers,
I have executed the recon-all command using the T1 images but I would be interested in doing a reconstruction of the hippocampal subregions using for that purpose a higher resolution images (eg T2 or FLAIR) as input. I read here https://surfer.nmr.mgh.harvard.edu/fswiki/HippocampalSubfields https://apac01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsurfer.nmr.mgh.harvard.edu%2Ffswiki%2FHippocampalSubfields&data=02%7C01%7Cjananimj%40hcl.com%7C733fab39e9994ea213fb08d5b18f8582%7C189de737c93a4f5a8b686f4ca9941912%7C0%7C1%7C636610152364530300&sdata=H1MJaa6TKp%2BOBlGtJM%2F%2BjnQBIdhAWvUS94hG9a3kC8c%3D&reserved=0 that is possible make hippocampal segmentation using the T2 images, but if T2 images cannot be used as input to execute the recon-all in consecuence I can´t do the segmentation of hippocampal subfields or on the contrary the recon-all and the hippocampal subfields segmentation are two operations that can be executed independently ?
I hope to have explained myself correctly
Thanks in advance.
Cheers
2018-05-03 18:28 GMT+02:00 Douglas N. Greve dgreve@mgh.harvard.edu:
No, not currently
On 05/03/2018 11:26 AM, M Janani wrote:
Hi Team,
I have one doubt. Can I input T2 weighted images forrecon-all command?
Regards,
Janani
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