Processing algorithms for color flow Doppler

Author

Kimme-Smith, C. ; Tessler, F.N. ; Grant, E.G. ; Perella, R.R.

Author_Institution

Dept. of Radiol. Sci., California Univ. Sch. of Med., Los Angeles, CA, USA

fYear

1989

fDate

3-6 Oct 1989

Firstpage

877

Abstract

An examination is made of the design decisions made for five color-flow Doppler units: Acuson, ATL, Hewlett Packard (500), Quantum (Quad 1), and Toshiba (270A). The five instruments were examined with an echo ultrasound Doppler phantom that includes a flowmeter to simulate reproducible rates of flow. Blood-mimicking fluid consisted of distilled water, glycerine, and 10- and 30-μm polyvinyl microspheres pumped through 0.5-cm-inner-diameter vessels embedded in a tissue-mimicking block. In addition, three of the units were tested with small vessels (1-3-mm inner diameter) and slow flow (to 5 cm/s) with bovine liver submerged in water as the intervening tissue. A study was made of the different imaging effects resulting from changed scanning parameters, so that inferences about design decisions of the different manufacturers could be surmised from these experiments

Keywords

Doppler effect; biomedical measurement; biomedical ultrasonics; flow visualisation; haemodynamics; blood mimicking fluid; bovine liver; color-flow Doppler units; design decisions; distilled water; echo ultrasound Doppler phantom; flowmeter; glycerine; imaging effects; intervening tissue; polyvinyl microspheres; processing algorithms; scanning parameters; tissue-mimicking block; vessels; Biomedical imaging; Color; Filtering; Filters; Frequency; Instruments; Manufacturing processes; RF signals; Transducers; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1989. Proceedings., IEEE 1989

Conference_Location

Montreal, Que.

Type

conf

DOI

10.1109/ULTSYM.1989.67114

Filename

67114