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自1874年Garrod氏~1叙述心率与左心室收缩期射血时间呈逆相关关系以来,许多研究者在心脏收缩时间间期(STI)研究方面做了一些工作,取得一定成果。如1926年Lombard等氏~2证实STI受体位和性别影响,1942年Blumberger氏~3首先报告左心室衰竭时射血前期(PEP)延长,收缩期左心室射血时间(LVET)缩短。1960年Doáge等氏~4应用心血管造影测定左心室容量之后,Garrard,Arnold和Weissler等氏~5研究应用血管造影在各种心脏病患者测定左心室搏出量,舒张晚期容量及射血比数(LVEF或EF
Since the inverse relationship between the heart rate of Garrod’s ~ 1 and the ejection time of left ventricular systole in 1874, many researchers have done some work in the study of systolic time of heart (STI) and achieved some results. For example, in 1926, Lombard et al.2 confirmed the location and gender of STI. In 1942, Blumberger’s-3 first reported prolonged pre-ejection period (PEP) and systolic left ventricular ejection time (LVET). 1960 Doage et al ~ 4 after the application of angiography to determine left ventricular volume, Garrard, Arnold and Weissler et al ~ 5 studies using angiography in a variety of heart disease patients measured left ventricular stroke volume, late diastolic volume and ejection ratio Number (LVEF or EF