Cost/benefit selection of spectral estimators for use with ultrasonic Doppler blood flow instruments

Author

Ruano, M.G. ; Fish, Peter J.

Author_Institution

Sch. of Electr. Eng. Sci., Univ. Coll. of North Wales, Bangor, UK

Volume

5

fYear

1992

fDate

23-26 Mar 1992

Firstpage

513

Abstract

The work described is part of a research program aiming to increase the sensitivity to blood vessel disease detection using spectral analysis of Doppler shifted ultrasound scattered from blood by reducing the effects of the measurement procedure on the estimation of blood velocity and detection of flow disturbance. A criterion of selection of spectral estimation methods is described based on the accuracy of estimation of decisive signal parameters, under the constraint of low computational complexity. For parametric spectral estimators, this new cost/benefit criterion may also be used to select model order, leading to model orders significantly lower than those selected using accepted criteria

Keywords

Doppler effect; biomedical equipment; biomedical measurement; biomedical ultrasonics; haemodynamics; spectral analysis; Doppler shifted ultrasound; blood velocity; blood vessel disease detection; cost/benefit criterion; flow disturbance detection; low computational complexity; select model order; signal parameters; spectral analysis; spectral estimation methods; spectral estimators; ultrasonic Doppler blood flow instruments; Bandwidth; Blood flow; Computational complexity; Computational modeling; Diseases; Doppler shift; Frequency estimation; Instruments; Parametric statistics; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

1520-6149

Print_ISBN

0-7803-0532-9

Type

conf

DOI

10.1109/ICASSP.1992.226570

Filename

226570