ultrasonic Doppler blood flow imaging

例句：

1. 1. Ultrasonic Doppler imagingis used to detect the flow of bloodin the body.
   超声波多普勒成像用于检测身体内血液的流动。
2. 2. This techniquecan provide valuable information about the health ofthe heart and blood vessels.
   这种技术可以提供有关心脏和血管健康的宝贵信息。
3. 3. Theultrasonic Doppler imaging systemwas designed to improve patient comfort during theprocedure.
   超声多普勒成像系统被设计用来提高患者在手术过程中的舒适度。