Department of Radiology, Montreal Children's Hospital, Que.
Clinical assessment of the sacroiliac joints is difficult. Conventional radiography and radionuclide scanning have not afforded optimal sensitivity and specificity in the diagnosis of sacroiliac involvement in spondyloarthropathies. This report describes a technique for computed tomography of the sacroiliac joints in children; the method involves coronal scanning and allows assessment of the entire surface of the joints.