Q: Hi there Would anybody know why volumes from the same scanner would yield vastly different mincbet results? On several scans, I wind up with only half the brain masked. I’ve tried with and without nu_correct first, though mincbet on the nu_corrected file often results in seg faults. Is there any way to compare the image files to see why and how they are different (I’m not sure what the critical parameters might be). Any suggestions would be appreciated.

Thanks
http://www.bic.mni.mcgill.ca/pipermail/minc-users/2009-April/002451.html

A: This looks a lot like errors caused by irregular sampling , the easies way to check is to do mincheader your_file.mnc |grep irregular if you get something - the easies way to fix is just to replace it with regular sampling (for example if you happen to have irregular sampling in xspace):

minc_modify_header -sinsert ‘xspace:spacing=regular__’ your_file.mnc