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超声心动图负荷试验是在近10年来发展起来的新技术。由于其安全、无创及具有较高的敏感性,在基础医学和临床医学领域中的应用逐渐广泛。1 超声心动图负荷试验观察心率、年龄对正常人血液动力学的影响 1988年Turkevich、Lavine及Danielsen分别应用超声心动图,观察正常人踏车试验及食道心房调搏试验中不同心率变化对左室收缩及舒张时间间期的影响。Turkevich对5例正常人多次重复的观察结果显示,当心动周期长于600ms时,
Echocardiography load test is a new technology developed in the past 10 years. Due to its safety, noninvasiveness and high sensitivity, it has been widely used in the field of basic medicine and clinical medicine. 1 echocardiography load test observed heart rate, age on normal hemodynamics 1988 Turkevich, Lavine and Danielsen echocardiography were used to observe the normal treadmill test and esophageal atrial pacing in different heart rate changes in left ventricular The effects of systolic and diastolic time periods. Turkevich repeated observations of five normal subjects showed that when the cardiac cycle longer than 600ms,