Dear SPM users
I have reoriented T1 images in SPM2 and the warning: Shears involved
are occured. My questions are:
How to quantificate the amount of shearing?
Does the shearing information can be seen in the Dir Cos matrix?
If I rotate these images by a very thiny amount (yaw = 0.001)
the warning disappear. Could this be an opportunity to avoid
influences from shearing?
Thanks a lot in advance
Best regards
Juergen
----------------------------------------------
Juergen Haenggi, Ph.D. student
Division of Psychiatry Research
Psychiatric University Hospital
University of Zurich, Switzerland
P.O. Box 1931
Lenggstrasse 31, 8032 Zurich
0041 44 384 26 10 (office phone)
0041 76 445 86 84 (mobile phone)
0041 44 384 26 86 (fax)
H 115 (office room number)
[log in to unmask] (division email)
http://www.dpr.unizh.ch/ (division website)
http://www.juergenhaenggi.ch (private website)
----------------------------------------------
|