Griebenow R, Meier C, Saborowski F
Z Kardiol. 1981 Sep;70(9):687-92.
In 25 patients the systolic time intervals were simultaneously measured by echocardiography and by the conventional method using the ECG, phonocardiogram and indirect carotid pulse tracing. Beat-to-beat-analysis showed no significant difference for QS2 (367.1 +/- 26.7 ms vs. 367.9 +/- 26.5 ms). In contrast, the LVET measured by echocardiography was significantly longer than the LVET taken from the indirect carotid pulse tracing (275.3 +/- 26.3 ms vs. 266.2 +/- 25.9 ms, p less than 0.001). As a consequence, the echocardiographic PEP was significantly shorter than the conventionally measured PEP (91.3 +/- 18.0 ms vs 100.9 +/- 22.7 ms, p less than 0.001). Furthermore, both methods showed the weakest correlation for the ratio PEP/LVET. We conclude that STI can be reproducibly measured by echocardiography, which will lead to significantly different values for the STI compared to those measured by the conventional method.
对25例患者同时采用超声心动图以及使用心电图、心音图和间接颈动脉搏动描记的传统方法测量收缩期时间间期。逐搏分析显示，QS2无显著差异（367.1±26.7毫秒对367.9±26.5毫秒）。相比之下，超声心动图测量的左室射血时间明显长于间接颈动脉搏动描记测得的左室射血时间（275.3±26.3毫秒对266.2±25.9毫秒，p<0.001）。因此，超声心动图测得的射血前期明显短于传统方法测得的射血前期（91.3±18.0毫秒对100.9±22.7毫秒，p<0.001）。此外，两种方法对射血前期/左室射血时间比值的相关性最弱。我们得出结论，收缩期时间间期可通过超声心动图进行重复性测量，与传统方法测量的结果相比，其收缩期时间间期值会有显著差异。
