Title :
The correction of amplitude and phase deviations in ultrasound Doppler blood flowmeter
Author :
Wang Yiding ; Shangkai, Gao
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
The amplitude and phase deviations in ultrasound Doppler blood flowmeter would lead to wrong decision in clinical diagnosis. In order to reduce the influence of the deviations, a software method for deviation correction was presented. First, the values of amplitude and phase deviations were obtained by a signal correlation technique, then these values were used to correct the blood flow signal. Simulation results prove that the software method was a promising method
Keywords :
Doppler measurement; biomedical ultrasonics; blood flow measurement; digital simulation; measurement errors; medical signal processing; amplitude deviations; blood flow signal; clinical diagnosis; deviation correction; phase deviations; signal correlation technique; simulation results; software method; ultrasound Doppler blood flowmeter; wrong decision; Blood flow; Clinical diagnosis; Correlation; Delay; Demodulation; Equations; Sampling methods; TV; Testing; Ultrasonic imaging;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.804045
