[Mristudio-users] Optic radiations

[Christian Bieck]

Hello,

Since my last inquiry seemed to have escaped notice, I write you again 
in the hopes of finding a solution to my problem. 
As I wrote in my last email, I’m analyzing the FA values of the optic 
radiations and have, so far, extracted them by using 
anatomical landmarks and the DTIStudio functions AND, OR and NOT. The 
focus of my research concerns the posterior parts of the optic 
radiations ending in the primary visual cortex, but I find myself 
unable to extract them properly. Using the ROI-Operations in the Fiber 
Tab during Fiber Tracking oftentimes results in the removal of entire 
fiber tracts instead of just the anterior parts and any attempts to 
work with ROI Editor have not been successful so far. 
I have seen at least one paper in which the anterior/posterior parts 
and their FA values were examined via DTIStudio, so I know it’s 
possible, but I’m completely puzzled as how to actually do it. 
I would appreciate it *very* much if you could point me in the right 
direction. 
Thank you for your time. 

Cheers,
Christian Bieck
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