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英文誌(2004-)

Journal of Medical Ultrasonics

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2002 - Vol.29

Vol.29 No.03

Original Article(原著)

(J255 - J262)

パルス組織ドプラ法による僧帽弁輪収縮期速度を用いた陳旧性心筋梗塞患者の左室収縮機能評価

Assessment of Left Ventricular Systolic Function in Patients with Old Myocardial Infarction by Using Pulsed Tissue Doppler Imaging-Derived Mitral Annular Systolic Velocities

梶原 克祐1, 岩瀬 正嗣2, 杉本 邦彦1, 伊藤 さつき1, 渡邊 由紀子1, 鯉江 伸3, 松山 裕宇3, 菱田 仁3

Katsusuke KAJIHARA1, Masatsugu IWASE2, Kunihiko SUGIMOTO1, Satsuki ITOU1, Yukiko WATANABE1, Shin KOIE3, Hiroyuki MATSUYAM3, Hitoshi HISHIDA3

1藤田保健衛生大学病院臨床検査部, 2藤田保健衛生大学短期大学医療情報技術科, 3藤田保健衛生大学短期大学循環器内科

1Clinical Laboratory, Fujita Health University School of Medicine, 2Department of Medical Information, Fujita Health University School of Medicine, 3Department of Internal Medicine, Fujita Health University School of Medicine

キーワード : echocardiography, left ventricular systolic function, pulsed tissue Doppler imaging

We evaluated the usefulness of mitral annular systolic velocity derived from pulsed tissue Doppler imaging for assessing left ventricular ejection fraction (LVEF) in patients with an old myocardial infarction (OMI). Subjects consisted of 57 patients aged 66±10 years with OMI and 60 age-matched normal controls. Peak systolic (Sm) velocities were recorded at five sites on the mitral annulus corresponding to the septal, anterior, inferior, lateral, and posterior sites from the apical 4-chamber, 2- chamber, and long-axis views. The LVEF was calculated by modified biplane Simpson’s method. Sm velocities were reduced significantly more at all mitral sites in the OMI group than in the normal group, most profoundly at the infarcted sites. Comparison of Sm velocities of the anterior and inferior sites viewed from the apical 2-chamber view with LVEF≦45% showed that Sm velocities were lower in the inferior myocardial infarction group than in the anterior myocardial infarction group (p