It seems like our most recent scans from the same Philips scanner are getting flipped left to right after putting the dicom images into BRIK/HEAD format with to3d (judging by the activation). I was trying to look at was different about these scans (with dicom_hdr), and I noticed that the REL IMAGE Orientation (Patient) field for these had at least one coefficient in scientific notation, whereas in our older scans that field did not. I was just wondering if this would affect how to3d reads in the orientation of the dicom images?
Matt