Dear Friends, I have used a mixed set of images from 1.5T and 3.0T scanners with anisotropic voxel size in my study. I used Freesurfer tools for converting them to isotropic voxel size before segmentation and reconvert to initial state after segmentation. It is appreciated if someone let me know using such a mixed anisotropic data causes any side effect in the volume measurement or not. I will be also thankful if you could introduce a reference that discusses the effect.
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