MRIによる内耳形態の観察 Magnetic Resonance Imaging of the Inner Ear

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著者

    • 肥塚 泉 KOIZUKA Izumi
    • 聖マリアンナ医科大学耳鼻咽喉科 Department of Otolaryngology, St. Marianna University School of Medicine

抄録

We introduce a method to diagnose sensorineural hearing loss and vestibular disorder using magnetic resonance imaging (MRI). The main pathological finding in patients with Meniere's disease is distention of the entire endolymphatic system, i.e., endolymphatic hydrops, and its diagnosis depends primarily upon a history of fluctuating hearing loss and tinnitus, as well as episodic vertigo associated with vegetative symptoms. Therefore, the development of a practical tool to obtain objective evidence of the existence of endolymphatic hydrops is important. We applied a high-resolution magnetic resonance imaging device running at 2.11 T, 4.7 T, and 7.05 T for the non-invasive depiction of the fine structure of the inner ear in humans and guinea pigs. We have succeeded in depicting both the basilar and Reissner's membranes of the basal turn of the cochlea. In this paper, we present our results using high-resolution MRI and discuss the current status in this field. We suggest the possibility of using MRI for the morphological and functional diagnosis of inner ear pathology in the near future.

収録刊行物

  • Equilibrium research  

    Equilibrium research 66(4), 139-144, 2007-08-01 

    Japan Society for Equilibrium Research

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各種コード

  • NII論文ID(NAID)
    10021290300
  • NII書誌ID(NCID)
    AN00001485
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03855716
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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