The anatomy of a vertebra consists of the body, two pedicles, two transverse processes, pars interarticularis, spinous process, and both superior and inferior articular facets; two of each, total of four. When assessing the 45-degree oblique image, certain structures of the vertebra appear within the vertebral bodies that create a visualization of a “Scottie dog”. The Scottie dog is used as a reference to indicate proper positioning of the patient and is used as a tool to help in making the correct adjustments for an optimal image. The Scottie dog represents one half of the posterior arch and is made up of the transverse process (nose), a pedicle seen on end (eye), pars interarticularis (neck), superior articular process (ear) and the inferior
