I'm performing FA (fractional anisotropy) analysis between two groups (controls and patients) and want to extract individual values from the cluster of significant group difference for all subjects.

For this purpose, I first saved the result of significant group difference (FWE-corrected P < 0.05) as a 'mask.img'.

I then made a binary mask image ('mask_bin.img') using ImCalc function of 'i1>1'.

My question is how I can obtain individual FA value from this mask for all subjects' FA data?

Apology for the basic question.

Thank you in advance for your help.

Min J