ultrasonic cephalometry of fetus

例句：

1. 1. The ultrasonic cephalometry was usedto diagnose the baby's skull shapeand size.
   使用超声波头颅测量术来诊断婴儿的颅骨形状和大小。
2. 2. Duringthe ultrasonic cephalometry, the doctor could see the baby's brain activity clearly.
   在超声波头颅测量术期间，医生能够清楚地看到婴儿的脑部活动。
3. 3. Ultrasonic cephalometry is a non-invasivetechnique that helps doctors detect congenital abnormalities in the fetus.
   超声波头颅测量术是一种非侵入性技术，帮助医生检测胎儿的先天性异常。