title: Technical issues for MRI examination of the posterior fossa.
abstract: Examination of the posterior fossa by magnetic resonance imaging is discussed with respect to modern techniques and equipment, and including recent results of non-conventional studies in multiple sclerosis. Optimal protocol design will maximize resolution and signal strength while providing diagnostic contrast. Motion artifact from the sigmoid and transverse sinuses may appear as ghosting and can be mitigated with proper imaging parameter choices.
authors.affiliation: Department of Radiology, University of Pennsylvania, 3400 Spruce St, Philadelphia, PA, USA. jmcgowan@seas.upenn.edu
authors.forename: J C
authors.initials: JC
authors.lastname: McGowan
authors.forename: R S
authors.initials: RS
authors.lastname: Patel
mesh_terms: D016477:Artifacts; D001927:Brain Diseases / Q000175:diagnosis* / Q000473:pathology; D001933:Brain Stem / Q000473:pathology; D002524:Cerebellar Ataxia / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000473:pathology