Hello,

Since the ICV ("eTIV") value is derived from the determinant of "talairach_with_skull.lta", we were wondering if there is a way to check the accuracy of this transform? (e.g., as there is for talairach.xfm using tkregister2)

Using 'mri_convert', we were able to convert "RB_all_withskull_2007-08-08.gca" to a conformed (1 x 1 x 1 mm) mgz file for visualization of the RB_all_withskull space. However, despite trying a bunch of different syntaxes with 'tkregister2', we couldn't subsequently figure out how to actually view/confirm the accuracy of the talairach_with_skull.lta transform.

In your experience, is the the talairach_with_skull.lta transform always reasonable, or does it sometimes fail (and if the latter, is the failure rate version dependent?)

thanks, Mike H.