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判断左室功能对制订治疗措施、评价疗效、估计预后等具有重要意义。无创性心功能检查方法具有操作简便、安全、可靠、病人不感痛苦、便于重复检查等优点,因而受到普遍的重视。收缩时间间期作为无创性心功能指标已被普遍接受并已广泛应用于临床。超声心动图左室射血分数、短轴缩短百分数和平均周边纤维缩短速度与造影法测得值之间均密切相关,但对其在冠心病中的应用尚有异议。心阻抗图是新近发展起来的一种无创性检查,该法可用于测定心输出量和心肌收缩功能,但对其应用价值尚在研究探索之中。本文的目的是分析和比较这三种无创性检查在评定冠心病左室功能
To determine the left ventricular function in the development of treatment measures to evaluate the efficacy of prognosis is of great significance. Noninvasive cardiac function test method has the advantages of simple, safe, reliable, patient does not feel painful, easy to repeat the inspection, etc., and therefore widespread attention. Contraction time interval as a noninvasive cardiac function has been widely accepted and has been widely used in clinical practice. Echocardiography left ventricular ejection fraction, percentage of short axis shortening and the average peripheral fibrillation velocity and angiography were closely related to the measured values, but its application in coronary heart disease there are still objections. Cardiac impedance map is a newly developed non-invasive test, which can be used to determine cardiac output and myocardial systolic function, but its application value is still under research and exploration. The purpose of this article is to analyze and compare the three noninvasive tests in assessing left ventricular function in patients with coronary heart disease