Wavelet transform for cross correlation processing in PW ultrasound

Author

Xu, Xiao-Liang ; Greenleaf, James F.

Author_Institution

Biodynamics Res. Unit, Mayo Clinic, Rochester, MN, USA

fYear

1994

fDate

1994

Firstpage

1224

Abstract

Addresses applying the wavelet transform to cross correlation (CC) processing in pulsed-wave (PW) ultrasound for measurement of tissue motion and the velocity profile of blood flow. Cross correlation processing has certain advantages over the Doppler method in performance, but its performance is sensitive to window size and noise. The authors describe how CC processing can be done with the wavelet transform. They mention that the wavelet transform has a unique feature of varying time-frequency resolution. Cross correlation processing in the wavelet domain is more robust with respect to window size and less sensitive to noise

Keywords

blood flow measurement; Doppler method; blood flow velocity profile; cross correlation processing; matched filtering; noise; pulsed-wave ultrasound measurement; tissue motion measurement; varying time-frequency resolution; window size; Blood flow; Fluid flow measurement; Motion measurement; Pulse measurements; Time frequency analysis; Ultrasonic imaging; Ultrasonic variables measurement; Velocity measurement; Wavelet domain; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE

Conference_Location

Baltimore, MD

Print_ISBN

0-7803-2050-6

Type

conf

DOI

10.1109/IEMBS.1994.415404

Filename

415404