Effects of variability in manually contoured spinal cord masks on fmri co-registration and interpretation

HIGHLIGHTS

SUMMARY

The authors characterize the variability in spinal cord masks achieved by eight raters with varying levels of image analysis experience, with respect to a "reference" rater from the original study and publication. To assess the effect of fMRI image_quality on rater agreement, two metrics were calculated for each dataset on the temporal mean functional image: the coefficient of variation (CV) of voxels adjacent to the reference spinal cord mask and_(2) the ratio between the mean signal of adjacent voxels and the mean signal within the reference spinal cord mask (Adjacent:SC ratio). Reducing . . .

 



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