cc'ing Avi who is the best person to shed light on TalAviQA. Not sure about the jacobian answer
On 07/15/2017 03:25 PM, Helfand, Alexander I wrote:
Hi FreeSurfer Team,
I was hoping I might be able to get some information about TalAviQA. I have read that this number is a spatial correlation between the input image and the image transformed to the Talairach atlas. Is that correct? Can you tell me any more about how this correlation is calculated?
I hope this isn't a silly question, but besides the Euler numbers and the mris_jacobian command, are there any other quantitative metrics of how much warping was necessary for a particular subject's recon-all? Also, are there multiple ways to run mris_jacobian such that you can get information beyond lh/rh.white.preaparc? Might you be able to offer any hints as to other files to feed the mris_jacobian command besides 'mris_jacobian ../surf/l(r)h.white.preaparc ../surf/l(r)h.sphere.reg ../surf/l(r)h.jacobian_white'
Finally, is there a complete set of documentation somewhere for the QA Tools package of scripts? Are these scripts up to date and compatible with Freesurfer 6? https://surfer.nmr.mgh.harvard.edu/fswiki/QATools suggests that v1.1 came out in 2012 and the current release for download is v1.2...
Thanks for your time, thanks for your efforts creating and maintaining Freesurfer! Alex
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