It is shown that time-varying velocity produces frequency modulation of the backscattered signal in ultrasonic Doppler flowmeters. Furthermore, for blood flow in the ascending aorta, it is estimated that the spectrum of the backscattered signal would have a very wide bandwidth in the acceleration phase.
|Number of pages||4|
|Journal||IEEE Transactions on Biomedical Engineering|
|Publication status||Published - 1987 May|
ASJC Scopus subject areas
- Biomedical Engineering