Dear SPMers
When using SPM to convert the images from DICOM and then display them I get a warning: shears involved. I am wanting to do longituidnal analysis with the data and wonder if this will lead to errors in spatial normalisation?
Should I worry about this?
Would it be best if the dicom images are converted using, for example MRIcro, prior to using SPM?
I also need to reorient the images to the AC will this warning affect this? And when I alter pitch, roll or yaw, why does the image in the display appear smaller? And will this affect my preprocessing involving HDW, DARTEL etc?
Thanks in advance for any help.
Emma
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