Title :
Reconstruction of maximum blood flow velocity waveforms from Doppler ultrasound measurements
Author :
Fernando, Kumari L. ; Mathews, V. John ; Clark, Edward B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Utah Univ., Salt Lake City, UT, USA
Abstract :
This paper presents a novel algorithm for the extraction of maximum blood flow velocity waveforms from Doppler measurements. This method is based on the short-term integrated spectrum of the Doppler signal, and does not require a pre-selected threshold level to deal with the background noise. Experimental results indicate that this method is more robust and better suited for the maximum frequency estimation than currently used methods.
Keywords :
Doppler measurement; biomedical ultrasonics; blood flow measurement; medical signal processing; noise; signal reconstruction; Doppler shift; Doppler ultrasound measurements; arteries; background noise; integrated power spectrum; maximum blood flow velocity waveforms reconstruction; preselected threshold level; real Doppler signals; short-term integrated spectrum; simulated Doppler signals; veins; Blood flow; Cities and towns; Electric variables measurement; Estimation error; Fluid flow measurement; Frequency estimation; Signal generators; Ultrasonic imaging; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1134417
