Power spectral density function of ultrasound Doppler in the microcirculation

Author

Raunig, David ; Fox, Martin D.

Author_Institution

Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA

fYear

2000

fDate

2000

Firstpage

95

Lastpage

96

Abstract

For many capillary orientation models, the maximum expected spectral power is at the maximum Doppler shift. Additionally, by gating the signal to measure blood flow only during diastole, many of the pulse and pulse-related movement artifacts are minimized or deleted from the signal. Our results indicate the presence of blood flow related signals that result from the small arteries or capillaries at the finger tip

Keywords

Doppler measurement; biomedical ultrasonics; blood flow measurement; blood vessels; medical signal processing; spectral analysis; blood flow measurement; capillary orientation models; diastole; finger tip capillaries; maximum Doppler shift; maximum expected spectral power; microcirculation; noise artifacts; peripheral blood flow; power spectral density function; pulse artifacts; pulse-related movement artifacts; signal gating; small arteries; tissue insonification; ultrasound Doppler; Blood flow; Density functional theory; Diseases; Doppler shift; Fingers; Fluid flow measurement; Frequency; Pulse measurements; Ultrasonic imaging; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 2000. Proceedings of the IEEE 26th Annual Northeast

Conference_Location

Storrs, CT

Print_ISBN

0-7803-6341-8

Type

conf

DOI

10.1109/NEBC.2000.842396

Filename

842396