title: [Magnetic resonance tomography (MRT) of the orbit].
abstract: By using high field strengths and surface coils, MRT achieves a resolution comparable with CT in the orbita. The advantages of MRT are good contrast resolution and imaging in several planes. Twenty-six patients have been examined by MRT, which has shown high sensitivity and good detail for the demonstration of pathological changes. In spite of this, MRT at present is not a realistic alternative to ultrasound and CT, because it is unable to demonstrate bone and calcification; its specificity is low, but the time and cost of the examination is high. It is indicated only for problems involving the optic nerve and chiasma.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005069:Evaluation Studies as Topic; D005128:Eye Diseases / Q000175:diagnosis; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008875:Middle Aged; D009915:Orbit / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D009916:Orbital Diseases / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Magnetische Resonanztomographie (MRT) der Orbita.