Hi all. I get the nii.gz file and bvecs using dcm2nii. The nii.gz file is in the LAS orientation. I wonder if I swap it to RAS orientation, is the bvecs file still suitable for DTIFit? Or I have to swap the bvecs as is done on nii.gz file? Thanks. Xiang-zhen -- ----------------------------------------------------------------------------------------- Kong Xiangzhen State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China, 100875.