脳への塞栓源としての大動脈弓部粥腫の超音波診断 Ultrasonographic Diagnosis of Aortic Arch Atheroma as a Source of Emboli Reaching the Brain

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著者

    • 豊田 一則 TOYODA Kazunori
    • 国立循環器病センター内科脳血管部門 Cerebrovascular Division, Department of Medicine, National Cardiovascular Center

抄録

Several pathological studies have reported that emboli originating from atherosclerotic plaque in the aortic arch can be a cause of so-called cryptogenic stroke. Transesophageal echocardiography (TEE) has many advantages over other diagnostic tools including CT, MRA, and conventional aortography for evaluation of aortic atheroma. We previously proposed that plaque in the aortic arch with a maximal intima-medial thickness of > 3.0 mm and a markedly irregular surface or broad acoustic shadow on TEE was indicative of a pathology-proven complicated atheromatous lesion. Recent studies have often used the criterion of a maximal intima-medial thickness of > 4.0 mm as an indicator of an embologenic lesion, as proposed by the French Study of Aortic Plaques in Stroke Group. In addition, special plaque characteristics, including pedunculation, ulceration, and extension to the orifice of the branch arteries may contribute to stroke occurrence. Diagnostic guidelines for neurosonological examinations including TEE are being prepared by committee members of The Japan Academy of Neurosonology.

収録刊行物

  • 神経超音波医学 = Neurosonology : official journal of Japan Academy of Neurosonology  

    神経超音波医学 = Neurosonology : official journal of Japan Academy of Neurosonology 18(2), 58-62, 2005-12-30 

    The Japan Academy of Neurosonology

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各種コード

  • NII論文ID(NAID)
    10018032827
  • NII書誌ID(NCID)
    AN10236361
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    0917074X
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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