超音波検査技術
Online ISSN : 1881-4514
Print ISSN : 1881-4506
ISSN-L : 1881-4506
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30 巻, 6 号
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学術賞－原著
  • 2Dティシュトラッキングシステムによる左室壁運動定量評価
    泉 礼司, 渡邉 望, レナン スクマワン, 吉田 清
    2005 年 30 巻 6 号 p. 479-484
    発行日: 2005/10/01
    公開日: 2007/09/04
    DOIhttps://doi.org/10.11272/jss.30.479
    ジャーナル フリー
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    A novel tissue tracking system (TTS) that enables automatic assessment of 2-dimensional strain of left ventricle (LV) segments simultaneously from gray-scale digital echocardiography images has been developed. We sought to validate the application of the system for automatic quantification of systolic wall thickening (WT) in human, by comparing the 2-dimensional radial strain (thickening) with manually measured systolic WT at the same segments. We assessed 202 LV segments from 101 digital echo images, with good and fair quality :mages, acquired from 35 subjects. There were good correlation and agreement between 2-dimensional radial strain assessed by TTS and manually measured systolic WT: in overall subjects (r=0.89, p<0.001), in good quality images (r=0.94, p<0.001). and in fair quality images (r=0.82, p<0.001).
    The novel TTS provides method for automatic quantification of human LV systolic wall thickening.
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