Dear FS experts,
I was trying to find the gray matter volume of superior temporal gyrus (STG) for schizophrenia patients using freesurfer. I ran recon-all and generated the rh/lh.aparc.volume.stats using qdec.
From that, I got the volume for left hand lh_superiortemporal_volume,=11893.
Out of curiosity, I separately found the STG volume for this patient alone using the follo. steps. 1. Saved the label lh.STG using tksurfer -annot aparc SZ01 lh pial 2. Then generated the volume using mris_anatomical_stats. 3. I found the value to be 16268.
I'm wondering why there is so much changes in the generation of GM volumes. Can anyone please help me with my query?
Dear All, Sorry for this email. I think I made some mistakes. When I redone the analysis, the values were same. Kindly ignore the email.
________________________________ From: Anupa AV av.anupa@yahoo.com To: Freesurfer freesurfer@nmr.mgh.harvard.edu; Bruce Fischl fischl@nmr.mgh.harvard.edu Sent: Thursday, October 3, 2013 11:06 AM Subject: Difference in GMV generated from qdec and mris_anatomical_stats
Dear FS experts,
I was trying to find the gray matter volume of superior temporal gyrus (STG) for schizophrenia patients using freesurfer. I ran recon-all and generated the rh/lh.aparc.volume.stats using qdec.
From that, I got the volume for left hand lh_superiortemporal_volume,=11893.
Out of curiosity, I separately found the STG volume for this patient alone using the follo. steps. 1. Saved the label lh.STG using tksurfer -annot aparc SZ01 lh pial 2. Then generated the volume using mris_anatomical_stats. 3. I found the value to be 16268.
I'm wondering why there is so much changes in the generation of GM volumes. Can anyone please help me with my query?
freesurfer@nmr.mgh.harvard.edu
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Anupa AV