Fig. 3From: Comparison of cross-sectional area and fat infiltration of suboccipital muscles between normal dogs and dogs with atlantoaxial instabilityThe CSA of the spinal canal (CSF column) and cord in a normal dog (A, B) and an AAI dog (C, D). On the transverse T2-weighted images (B, D), CSA of the spinal canal (outer line) and CSA of the spinal cord (inner line) were measured at C1-2 level of the corresponding of line at the sagittal T2-weighted images (A, C)Back to article page