Musculoskeletal Imaging with Multislice CT
Buckwalter Kenneth A., Rydberg Jonas, Kopecky Kenyon K., Crow Keith, Yang Edward L.
Multislice CT has brought about major advances in bone and joint imaging. A volumetric image set with isotropic properties can be obtained in a single acquisition with a 0.5-mm slice width. Multislice CT allows extended anatomic coverage with thin slices; large patients and patients with metal hardware in their bodies now can be scanned without sacrificing diagnostic quality. To take full advantage of these capabilities, production of multiplanar reformatted (MPR) images has become an integral part of the examination. Different three-dimensional renderign techniques can be applied to reduce the large image sets into clear pictures for the referring physician and the patient. In our 8-year experience, the detailed MPR images obtained from volumetric data obviate reviewing the original slice data. Multislice helical CT was introduced in 1992 with a dual-slice scanner (CT-Twin; Elscint, Haifa, Israel). Most of the examinations presented in this pictorial essay were produced using a quad-slice scanner (Mx8000; Marconi Medical Systems, Cleveland, OH); a few were produced using a dual-slice machine (Twin; Marconi Medical Systems).