a-c: Volume Rendering Technique - Images of cervical spine. Lateral view VRT images illustrate the dorsally displaced right articular pillar of C5 (arrow in a). The abnormal enlarged right intervertebral foramen of C4-5 (arrow in b) which is a consequence of the absent cervical pedicle is displayed on an oblique view VRT image. Spina bifida occulta at the same level (arrow in c) as well as a reversed facet-joint on the right (arrowhead in c) are well depicted on a dorsal view VRT images (c).
Guggenberger et al. BMC Medical Imaging 2010 10:25 doi:10.1186/1471-2342-10-25