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Comparative Study
Magnetic resonance imaging of nonmetallic orbital foreign bodies.
- W B Wilson, J N Dreisbach, D E Lattin, and J C Stears.
- Department of Ophthalmology, University of Colorado School of Medicine, Denver.
- Am. J. Ophthalmol. 1988 Jun 15; 105 (6): 612-7.
AbstractWe studied a cadaver head model in which we inserted three orbital foreign bodies. We chose these foreign bodies because of their similarity to substances found in orbital trauma. Teflon and Lucite were used to represent synthetic materials, and dry pine was chosen as a type of organic material. Lucite is similar in radiographic density to plastics used in interior trim for automobiles and spectacle frames. While both orbital ultrasound and plain skull films failed to detect the foreign bodies consistently, both computed tomography and magnetic resonance imaging detected and localized the foreign bodies relatively well. Computed tomography was better in delineating shape and characterizing composition.
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