de Koning A, et al. - This study was implemented to compare the CT Syndesmophyte Score (CTSS) for low-dose CT (ldCT) with the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) for conventional radiographs (CR) in patients with ankylosing spondylitis (AS). Findings demonstrated that while CR was limited to the cervical and lumbar spine, ldCT, covering the whole spine, detected more progression in the form of new and growing syndesmophytes. In the thoracic spine, most progression was evident.