Re: [Freesurfer] Questions re slice thickness, aseg and longitudinal analysis

2019-10-09 Thread Martin Reuter
Hi David, I am not very optimistic: 5mm is too thick for FreeSurfer (recommendation is 1 up to 1.5). You will certainly get something, but it can be very unreliable and completely wrong. Especially longitudinally these thick slices will induce large variance due to different head positioning (an

[Freesurfer] Questions re slice thickness, aseg and longitudinal analysis

2019-10-07 Thread David Kamson
External Email - Use Caution Freesurfers, First of all, I'd like to express my gratitude to the community for the support that keeps researchers like myself afloat! I have a unique set of oncology patients that I want to evaluate for brain atrophy in a retrospective longitud