[Mristudio-users] Questions about frames

[Hangyi Jiang]

the results are based on image frame. in the end, we are doing image analyze, which is based the images in our hand.  :)

hangyi






________________________________________
From: mristudio-users-bounces at mristudio.org [mristudio-users-bounces at mristudio.org] On Behalf Of Xu Li [xuli at mri.jhu.edu]
Sent: Wednesday, October 27, 2010 10:44 AM
To: DTI Studio, ROI Editor,     DiffeoMap Questions/Support
Subject: [Mristudio-users] Questions about frames

Dear Susumu and Hangyi,

I have one quick questions about the eigenvectors we can get from DTI-Studio. Are they defined in the image frame or the lab frame? I understand that the gradient is applied according to the image frame but the correct gradient table should be defined in lab frame (i.e. if we acquire 0 angulation data, the very first gradient vector would be [0 0 1] or some thing like that).  But after we do the tensor fitting and eigenvalue decomposition, are they still in lab frame? I guess it is, but just want to confirm.

Thanks!

Xu
_______________________________________________
mristudio-users mailing list
mristudio-users at mristudio.org
http://lists.mristudio.org/mailman/listinfo/
Unsubscribe, send a blank email to: mristudio-users-unsubscribe at mristudio.org