Wladimiroff J W, Ligtvoet C M, Spermon J A
Br Med J. 1976 Oct 23;2(6042):975-6. doi: 10.1136/bmj.2.6042.975.
A combined one- and two-dimensional ultrasonic system for monitoring respiratory movements in the human fetus has been developed. A real-time cross-sectional image of the fetal chest at the level of the fetal heart can be obtained, and a time motion recording of fetal respiratory movements can then be written on a strip-chart recorder. Combining the features of one-dimensional and two-dimensional systems produces an accurate means of investigating fetal breathing movements.
已开发出一种用于监测人类胎儿呼吸运动的一维与二维超声组合系统。可获取胎儿心脏水平处胎儿胸部的实时横截面图像,然后可将胎儿呼吸运动的时间-运动记录写在带状记录器上。将一维和二维系统的特性相结合,产生了一种研究胎儿呼吸运动的精确方法。