僧帽弁位ＳＪＭ弁閉鎖音の周波数解析の意義

DOI

書誌事項

タイトル別名
  • Frequency spectrum analysis of SJM cardiac prosthetic closing sound at mitral position.

説明

The closing sounds of eleven St. Jude Medical cardiac prostheses at mitral position were analysed using the technique of the fast Fourier transform. The frequency-spectra contain a peak at about 1KHz, and decline the power to 5 to 7KHz. In two patients, 8.3 years and 4.5 years postoperatively, their frequency spectra of one leaflet showed a dip at 2.5KHz, respectively. The closing sound analysis is a useful methodd for the early detection of thrambosed SJM cardiac prosthesis at mitral position as well as at aortic or pulmonary position.

収録刊行物

  • 人工臓器

    人工臓器 19 (1), 382-385, 1990

    一般社団法人 日本人工臓器学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390282679931729152
  • NII論文ID
    130001733630
  • DOI
    10.11392/jsao1972.19.382
  • ISSN
    18836097
    03000818
  • 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

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