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Japanese

Comparative Evaluation of Corona] Images of the Middle Ear Visualized by CT Scan and Polytomography Masao Sngiyama 1 1Department of Otolaryngology, Osaka City University Medical School pp.511-516
Published Date 1982/7/20
DOI https://doi.org/10.11477/mf.1492209463
  • Abstract
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 We retrospectively analysed the coronal images of the middle ear obtained by multidirectional tomography (polytomography) and computed tomography (CT) in 40 patients. Although CT was capable of demonstrating water density in the middle ear more clearly than polytomography and of delineating a lesion extending even outside of the petrous bone, the diagnostic capability was not much different between the two tomographic techniques. On the other hand, coronal CT scan has a disadvantage in that it usually has to be performed during hyperextension of the neck or while patients are in an uncomfortable hanging head position. We think that CT scan should be utilized only in case with a lesion extending beyond the petrous bone and/or is not well visualized by polytomography.


Copyright © 1982, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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