The effect of accelerated tissue motion on clutter rejection in color flow imaging

Author

Bjaerum, S. ; Torp, Hans

Author_Institution

Dept. of Physiology & Biomed. Eng., Norwegian Univ. of Sci. & Technol., Trondheim, Norway

Volume

2

fYear

1999

fDate

1999

Firstpage

1503

Abstract

To improve the clutter rejection in color flow imaging, the signal was mixed down with the estimated mean clutter Doppler frequency prior to clutter filtering. This technique was tested on both in-vivo and simulated data. The simulations showed that for a constant velocity clutter signal, the downmixing algorithm gave significant improvement, and had close to optimum clutter rejection. For accelerated motion, the downmixing algorithm performed much worse than the optimum filter, and there was just a slight improvement with mixing

Keywords

Doppler measurement; biological tissues; biomechanics; biomedical ultrasonics; clutter; image motion analysis; medical image processing; US imaging; accelerated tissue motion effect; clutter rejection; color flow imaging; downmixing algorithm; estimated mean clutter Doppler frequency; in-vivo data; medical diagnostic imaging; optimum filter; simulated data; Acceleration; Acoustic scattering; Biomedical imaging; Biomedical measurements; Filtering; Filters; Frequency estimation; Polynomials; Testing; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE

Conference_Location

Caesars Tahoe, NV

ISSN

1051-0117

Print_ISBN

0-7803-5722-1

Type

conf

DOI

10.1109/ULTSYM.1999.849282

Filename

849282