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英文誌(2004-)

Journal of Medical Ultrasonics

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1996 - Vol.23

Vol.23 No.11

Technical Note(技術報告)

(0821 - 0824)

Color kinesis(CK)法による左室局所壁運動評価−熟練者と初心者の壁運動評価の比較−

Evaluation of Left Ventricular Wall Motion by Color Kinesis: Comparison of Assessment of Left Ventricular Wall Motion bv Experienced and Inexperienced Observers

川井 順一1, 吉田 清1, 穂積 健之1, 赤阪 隆史1, 高木 力1, 山室 淳1, 八木 登志員1, 盛岡 茂文1, 吉川 純一2

Junichi KAWAI1, Kiyoshi YOSHIDA1, Takeshi HOZUMI1, Takashi AKASAKA1, Tsutomu TAKAGI1, Atsushi YAMAMURO1, Toshikazu YAGI1, Shigefumi MORIOKA1, Junichi YOSHIKAWA2

1神戸市立中央市民病院循環器センター内科, 2大阪市立大学第1内科

1Division of Cardiology Kobe General Hospital, 2First Department of Internal Medicine Osaka City University Medicine School

キーワード : Acoustic quantification, Color kinesis, Echocardiography, Endocardial wall motion

Color kinesis is a new technology for analysis of left ventricular wall motion by two-dimensional echocardiography based on acoustic quantification. This technique uses integrated backscatter data that identifies samples that change from blood to tissue or from tissue to blood during sequential acoustic frames to detect endocardial motion in real time automatically. Each frame that has changed from the preceding frame is marked with a single hue. The colors accumulate frame by frame throughout systole, resulting in a color overlay that is superimposed on the two-dimensional echocardiographic image. These color overlays are genegrated in real time, and the display is updated continuously. Here we evaluated the concordance between an experienced and inexperienced observer in the evaluation of left ventricular wall motion using color kinesis and two-dimensional echocardiography. Concordance between the beginner using color kinesis and the experienced observer using two-dimensional echocardiography was significantly higher than that between the beginner and an experienced observer using two-dimensional echocardiography alone (p