Hi Yoon - Please see "FA ROI analysis" in the diffusion tutorial on the freesurfer wiki:

https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/Diffusion_DtiIntegratio...

Best,

a.y

On Mon, 15 Aug 2016, Chung, Yoonho wrote:

Hi Anastasia,

Is it possible to extract diffusion measures FA, ADC etc. within the subcortical (ASEG) or WM parc ROI regions using the Freesurfer tools? If possible, can you show how it can be done? Thank you in advance.

Best,

Yoon