Online Journal
IF値: 1.878(2021年)→1.8(2022年)


Journal of Medical Ultrasonics

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1998 - Vol.25

Vol.25 No.08

Case Report(症例報告)

(0863 - 0867)


Location of Stenosis in the Proximal Left Anterior Descending Coronary Artery in a Case of Angina Pectoris Diagnosed by Transthoracic Doppler Echocardiography

豊田 康誠1, 石井 秀太1, 佐谷 修1, 2, 中村 信男1, 2, 上野 雄二2, 塩谷 雅彦3, 西尾 一郎3

Yasuaki TOYODA1, Shuta ISHII1, Osamu SATANI1, 2, Nobuo NAKAMURA1, 2, Yuji UENO2, Masahiko SHIOTANI3, Ichiro NISHIO3

1国保那賀病院循環器科 , 2誠佑記念病院循環器科 , 3和歌山県立医科大学循環器内科

1Division of Cardiology, Kokuho Naga Hospital, 2Division of Cardiology, Seiyu Memorial Hospital, 3Division of Cardiology, Department of Medicine, Wakayama Medical College

キーワード : Color Doppler echocardiography , Coronary artery stenosis , Coronary circulation , Pulsed Doppler echocardiography

A 70-year-old woman with a history of hypertension was admitted to the hospital complaining of chest pain. Electrocardiographic findings showed negative T in I, aVL, and V1-5; transthoracic two-dimensional echocardiography, left ventricular hypertrophy without asynergy; transthoracic Doppler echocardiography, localized markedly higher velocity signal in proximal portion of left anterior descending coronary artery (LAD) compared with the proximal or distal portion; and coronary angiography, 90 percent stenosis at the mid portion of segment six in LAD. Stent implantation to the stenotic region was undertaken, and the region was adequately dilated. Transthoracic Doppler echocardiography after stent implantation showed disappearance of the segmental high velocity signal in the proximal LAD. Transthoracic Doppler echocardiography thus proved to be a highly useful yet simple method for non-invasive diagnosis of the stenotic region in this case of proximal LAD.