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      Normal Magnetic Resonance Contrast Enhancement of Extraocular Muscles: A Quantitative Analysis

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          Abstract

          The purpose was to evaluate quantitatively the magnetic resonance contrast enhancement of normal extraocular muscles and the use of temporal muscles as a reference of enhancement. Eighty extraocular and 20 temporal muscles were taken into analysis. Before contrast administration, mean intensity of extraocular muscles was found to be higher than that of temporal muscles (p < 0.000). With contrast agent, all extraocular muscles were enhanced more (111% enhancement) than the temporal muscles (45% enhancement, p < 0.000). Lateral recti had the lowest signal intensity, both in pre- and postcontrast images (p < 0.005). Normal extraocular muscles showed prominent enhancement on contrast-enhanced T<sub>1</sub>-weighted images. Temporal muscles were also enhanced in all subjects, urging the observers to compare the enhancement of extraocular muscles not with the latter.

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          Author and article information

          Journal
          OPH
          Ophthalmologica
          10.1159/issn.0030-3755
          Ophthalmologica
          S. Karger AG
          0030-3755
          1423-0267
          2002
          April 2002
          02 April 2002
          : 216
          : 2
          : 85-89
          Affiliations
          Department of Radiodiagnostics, Trakya University Medical School, Edirne, Turkey
          Article
          48304 Ophthalmologica 2002;216:85–89
          10.1159/000048304
          11919431
          © 2002 S. Karger AG, Basel

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          Page count
          Figures: 4, Tables: 1, References: 5, Pages: 5
          Categories
          Original Paper · Travail original · Originalarbeit

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