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

Volume

2

fYear

1999

fDate

36434

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;

fLanguage

English

Publisher

ieee

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

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804045

Filename

804045