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Dear FS-experts,
I want to create myelin maps out of T1w/T2w contrasts and I have already read this e-mail conversation from the archive: https://secure-web.cisco.com/1ys6IhakVz9GhQ8cHqjngCPDL_6cj2C64AxUoa21H6uDavamMeR5dY3XB_rFJa_HEJY9U59NR92mCxP7eMdb0dlp9g3nJnRm1kqj9GTx7cdBmbh9IM0-gAwik35XtPirVNObLy2R4C0LmDIxTxpPyOPFAKVBIyYvBrUALLTZO9nBk87u_v3mvgk2a9S10YKvkN1_ISfHWt3lSstHBoBLdxhA-V7u9BonCROoJK2IMVh9S1uhYSnqm_IoM_jxaBf9V5lHbLaUW1RyBgyMxVfZKaA/https%3A%2F%2Fwww.mail-archive.com%2Ffreesurfer%40nmr.mgh.harvard.edu%2Fmsg70222.html https://secure-web.cisco.com/1ys6IhakVz9GhQ8cHqjngCPDL_6cj2C64AxUoa21H6uDava.... It is suggested to use the PVC function of PETsurfer on the T1/T2 ratio. However, I have trouble understanding which commands are necessary for this task.
How is the T1/T2 ratio obtained? Did I understand correctly that then running gtmseg and mri_gtmpvc described in https://secure-web.cisco.com/1GCM3hPGgpuFPwg4AB7NHiJDqWsdiXhsPTtVOqPiJrwuVi-... are sufficient or are additional functions necessary? For mri_gtmpvc, what flags are required (since usually --i defines a PET image which we of course don't have)?
Best,
Melissa Thalhammer