Hirsimäki H, Kero P, Saraste M, Ekblad H, Korvenranta H, Wanne O
Department of Pediatrics, University of Turku, Finland.
Am J Perinatol. 1991 Jul;8(4):247-50. doi: 10.1055/s-2007-999389.
A nonimaging pulsed Doppler technique was used to grade the magnitude of flow in left-to-right shunting ductus arteriosus. The results were compared with those obtained with a color Doppler flow mapping technique. The correlation between the grading results by these two methods was 0.91 (p less than 0.01). To determine hemodynamic influence of left-to-right shunting ductal flow, simultaneous measurements of Doppler-derived cardiac output were done. Results showed significantly higher cardiac output in infants with grade III shunting than in infants with grade 0 and grade I shunting. The nonimaging pulsed Doppler ultrasound technique used in the present study proved to be a clinically useful and accurate grading system of left-to-right shunting at the ductal level. The simple grading system with nonimaging Doppler is a valuable adjunct to the color Doppler flow mapping technique. It allows a regular evaluation of ductal flow as well as cardiac output.
采用非成像脉冲多普勒技术对动脉导管左向右分流的血流程度进行分级。将结果与彩色多普勒血流成像技术所获得的结果进行比较。这两种方法分级结果之间的相关性为0.91（p<0.01）。为确定动脉导管左向右分流血流的血流动力学影响，同时进行了多普勒衍生心输出量的测量。结果显示，III级分流婴儿的心输出量显著高于0级和I级分流婴儿。本研究中使用的非成像脉冲多普勒超声技术被证明是一种在临床上有用且准确的动脉导管水平左向右分流分级系统。这种简单的非成像多普勒分级系统是彩色多普勒血流成像技术的宝贵辅助手段。它可以定期评估动脉导管血流以及心输出量。
