title: Computed tomography: immobilization of the head by dental holder.
abstract: Movement of the patient's head during computed tomographic studies with the EMI scanner causes some degradation of the quality of the examination. With sufficient movement, major artifacts appear which may obscure intracranial pathology. A simple method of head fixation, utilizing a dental mold, greatly reduces the incidence of unsatisfactory scans.
mesh_terms: D003201:Computers; D003748:Dental Equipment; D006257:Head / Q000000981:diagnostic imaging*; D007103:Immobilization; D011877:Radionuclide Imaging / Q000295:instrumentation*; D014056:Tomography, X-Ray / Q000295:instrumentation*