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多普勒能量显像（Dopplerpowerimaging，DPI）是最近才发展起来的一种新技术，它对移动的目标以能量显示，不仅能够观察高速度的血流，也可显示小血管内的低速血流，使肿瘤内血流检测敏感性明显高于彩色多普勒血流显像（CDFI）。我们自1994年11月～1995年10月期间，应用DPI技术
Doppler power imaging (Doppler power imaging, DPI) is a new technology that has recently been developed. It displays energy on moving targets, not only to observe high-velocity blood flow, but also to show low-velocity blood flow in small blood vessels. The sensitivity of detecting blood flow in tumors was significantly higher than that of color Doppler flow imaging (CDFI). We applied DPI technology from November 1994 to October 1995