How to access the cardiac function by using ultrasound:( ) A: M<br/>mode B: B<br/>mode C: Spectral<br/>Doppler pattern D: Tissue<br/>Doppler imaging E: All of the above

彩色多普勒显像的血流信号的特点是The characteri...ped Doppler image is

Doppler speed log may work in two mode ,one is seabed tracking ,another is______ .

Doppler ultrasound can be used to display A: Fetal heart beat B: Rear artifacts C: Blood flow

The most commom form in ultrasound clinic applications is ( ) A: A-mode B: B-mode C: Color Doppler D: M-mode

SAR利用脉冲压缩技术和Doppler效应，能达到米级的空间分辨率。

在彩超图像上，蓝色代表什么What does blue stands for in color mapped Doppler image？

SAR利用脉冲压缩技术和Doppler效应，能达到米级的空间分辨率。 A: 正确 B: 错误

中国大学MOOC: 在彩超图像上，蓝色代表什么What does blue stands for in color mapped Doppler image？

What can not produce Doppler effect in human body ( ) A: Fetal heart B: Heart valve C: Stationary liver tissue D: Blood flow