External Email - Use Caution Dear Freesurfer Expert,
We would like to extract mean Cth values for each subject within a own-creaded ROI (surface defined), using freeview (for instance). Is it possible to create a ROI (i.e. spherical surface) surrounding a particular vertex of an sig.mgh file? (and then extract its mean Cth values for each subject)? I think this is not a new question, and it was posted somehow on https://secure-web.cisco.com/15jmZMEaxCepVMfyQImwGR_dFusKbz7ObR8zcE3AMwMwg6FQ-QTkuETE4n5SJPU_y-ULxR0ToQgr0B_LnZ-TU71vd9-uYDXh55K9eVQ23CX9kaJT60pYOX0pH6tJ69K_Ry--XuPl1mkS0Vm-sSsWKWe2iqWjc5l2Y91tqImFy3Fb1NHtO7eCCpFk8I3Th1ljqxlnFLLOdjxe5bNpse_tYAPw-_J4V3X1Y9ONydytuj8eYC1Ly6c51azXalSlz6ZF_Xa9SbBJbXCJ6wvPAnlRqcmLPaBSCkzxpYzHM8250uaUvkwrVXDetf4ppJsTfDiNl/https%3A%2F%2Fsurfer.nmr.mgh.harvard.edu%2Ffswiki%2FFsTutorial%2FQuestionAnswers, and https://secure-web.cisco.com/1nS4AASSkp9fTCLDzqspNVvBf35PGarlPS708pOXtzpIMD4eASchvVbZLp65PS17HOn4cF-QEOKrz967tFrvqCTjlc-sB9fVuMI1CEUkb5m657oRe3DpyjwX9zSi3drP0cPEFBtrQe-2wfm3lQVO166f3QJao-Pq2XbpVRgo5UBgmt7oKBFbiBCBvj_534G45CEE2U9KkR7EjTPPn1W6w0ur3GGywIbW1Fh8AqeJa-QPpV2hrOWwEiX9Xkh3Dh4lveR2CDXf04WAXrlgdNdDnyqPZDbW1k45Pa1C37Ew1sU8dfqpWbKwdc1z2jO2R6EHx/https%3A%2F%2Fwww.mail-archive.com%2Ffreesurfer%40nmr.mgh.harvard.edu%2Fmsg67677.html, but I'm still encountering questions. These commands did run, but together they didn't create a binarized mask with 1 for the sphere around the coordinates, and 0 for the other voxels. Would you recommend what I should change? Thank you so much! $mri_volsynth --template $SUBJECTS_DIR/fsaverage/surf/lh.thickness --pdf sphere --sphere-center -7.4 67.22 60.27 --radius 5 --o delta.sm00.mgh $mris_fwhm \ --smooth-only \ --subject fsaverage \ --hemi lh \ --i delta.sm00.mgh \ --niters 10 \ --o delta.sm10.mgh $mri_binarize --i delta.sm10.mgh --min 10e-5 --o delta.sm10.bin.mgh Regards, Xiaoxu ---------------------------------------------------------------------- Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.
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