Fig. 5From: Cerebellar tonsil ectopia measurement in type I Chiari malformation patients show poor inter-operator reliability3D reconstruction of posterior cranial fossa and surrounding bony anatomy depicting McRae’s line (red line) drawn between the basion (green arrow) and opisthion (yellow arrow). Suboccipital region of the intracranial space (left), cervical-medullary junction (center and right) (images with permission from BioDigital Human Visualization Platform 1.1)Back to article page