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目的通过产前胎儿超声心动图测量胎儿心脏左室Tei指数的3种脉冲多普勒方法 ,评价胎儿心功能的临床价值。方法采用多普勒超声心动图,分别应用脉冲多普勒联合法(联合法)、脉冲多普勒分开法(分开法)以及心率校正脉冲普勒法(心率校正法)测量89例孕龄22～39周的胎儿左室的Tei指数。结果脉冲多普勒联合法与分开法、心率正法测量的胎儿Tei指数比较差异较大,脉冲多普勒分开法与心率校正法比较无明显差异。结论脉冲多普勒分开法与心率校正法测量Tei指数简便、可靠,重复性好,心率校正法更科学、精确,可作为评价胎儿心室舒张功能的理想指标。
OBJECTIVE: To evaluate the clinical value of fetal cardiac function by three kinds of pulsed Doppler echocardiography of prenatal fetal echocardiography. Methods Doppler echocardiography was used to measure the gestational age of 89 patients with pulse wave Doppler echocardiography (combined method), pulse Doppler echocardiography (separate method) and heart rate correction pulse wave method (heart rate correction method) Tei index of fetal left ventricle at ~ 39 weeks. Results Pulsed Doppler combined with the separation method, heart rate measurement of fetal Tei index difference is relatively large, pulse Doppler separation method and heart rate correction method was no significant difference. Conclusion The pulsed Doppler separation method and the heart rate correction method are simple, reliable and reproducible. The heart rate correction method is more scientific and accurate and can be used as an ideal index to evaluate the ventricular diastolic function.