Three Dimensional and High Resolution Magnetic Resonance Imaging of the Inner Ear. Normal Ears and Anomaly Scanned with 3D-CISS Sequence.

DOI 1 Citations 14 References
  • Edamatsu Hideo
    Department of Otorhinolaryngology, Dokkyo University School of Medicine
  • Uechi Yoko
    Department of Otorhinolaryngology, Kanazawa Medical University
  • Honjyo Shiro
    Department of Otorhinolaryngology, Kanazawa Medical University
  • 山下 公一
    金沢医科大学耳鼻咽喉科学教室
  • Tonami Hisao
    Department of Radiology, Kanazawa Medical University

Bibliographic Information

Other Title
  • 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
  • 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

Search this article

Description

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.

Journal

  • Otology Japan

    Otology Japan 7 (5), 589-594, 1997

    Japan Otological Society

Citations (1)*help

See more

References(14)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top