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Comparative study on CT and MRI for diagnosis of Parapharyngeal Tumors Yasuhiro Kase 1 1Department of Otolaryngology, Branch Hospital, faculty of Medicine, University of Tokyo pp.834-839
Published Date 1995/9/20
DOI https://doi.org/10.11477/mf.1411901202
  • Abstract
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To diagnose parapharyngeal tumors by CT or MRI, several modalities for these imagings, i. e. plane and enhanced CT, T1, 2 weighted MRI and Gadolinium enhanced MRI, have been performed routinely. We evaluated the usefullness of these modalities in diagnosing parapharyngeal benign tumors in 30 cases. The usefullness of each modality was judged by identifying rate of four anatomical landmarks i. e. parapharyngeal fat tissue, the inter-nal carotid artery, styloid process and muscles attached to the styloid process. The combination of enhanced CT, Tl and Gadolinium enhanced MRI were useful to identify these landmarks, but T2 and plane CT had no effect for identifying the land-marks. CT is superior to MRI only in dipicting the styloid process, but if one method has to be chosen from CT or MRI, we concluded that MRI should be chosen.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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