内耳の高分解能３次元ＭＲＩ　　正常耳と内耳奇形の３Ｄ‐ＣＩＳＳ法による撮影

• 枝松 秀雄

  獨協医科大学越谷病院耳鼻咽喉科学教室

• 上地 陽子

  金沢医科大学耳鼻咽喉科学教室

• 本城 史郎

  金沢医科大学耳鼻咽喉科学教室

• 山下 公一

  金沢医科大学耳鼻咽喉科学教室

• 利波 久雄

  金沢医科大学放射線科学教室

書誌事項

タイトル別名

• Three Dimensional and High Resolution Magnetic Resonance Imaging of the Inner Ear. Normal Ears and Anomaly Scanned with 3D-CISS Sequence.
• Normal Ears and Anomaly Scanned with 3D-CISS Sequence
• 正常耳と内耳奇形の3D-CISS法による撮影

抄録

The MRI system used in this study was a new scanning sequence, 3D-CISS (Three dimensionalconstructive interference in steady state) with 1.5 Tesla. Ten normal ears and one ear with Mondini type anomaly were scanned and reconstructed.<BR>In Imagings of normal inner ears, the cochlea has three spiral layers; basal, middle and apical turns. Each turn was separated into three parts; the scala vestibuli, osseous spiral lamina and scala tympani.<BR>Three semicircular ducts, utricle and saccule were also reconstructed in one frame.<BR>In the inner ear of Mondini anomaly, 3D MRI showed cochlear aplasia, hypoplasia of semicircular ducts and widely dilated vestibule. The imaging was identical with findings of “common cavity”. The anomaly was easily recognized in 3D MRI more than in 2D imagings.<BR>The detailed and cubic imagings of the Mondini anomaly in 3D MRI could not be observed with conventional 2D MRI. 3D MRI is not invasive method and can scan a target very quickly.

収録刊行物

• Ｏｔｏｌｏｇｙ　Ｊａｐａｎ

  Ｏｔｏｌｏｇｙ　Ｊａｐａｎ 7 (5), 589-594, 1997

  一般社団法人　日本耳科学会

キーワード

• Magnetic resonance imagings
• Three dimensional reconstruction
• Inner ear
• Mondini anomaly

詳細情報

• CRID: 1390001204769863552
• NII論文ID: 10024562240
• NII書誌ID: AN10358085
• DOI: 10.11289/otoljpn1991.7.589
• ISSN: 18841457
• ISSN: 09172025
• Web Site: https://search.jamas.or.jp/link/ui/1998124925
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可