Color Doppler imaging of acoustic streaming in blood and clot

Author

Shi, Xuegong ; Martin, Roy W. ; Vaezy, Shahram ; Crum, Lawrence

Author_Institution

Center for Bioeng., Washington Univ., Seattle, WA, USA

Volume

2

fYear

1999

fDate

1999

Firstpage

1315

Abstract

Acoustic streaming was generated in blood during coagulation using high intensity focused ultrasound (HIFU) and imaged in real-time with regular color Doppler imaging. The streaming velocity was measured at various time points during the coagulation process until a clot was well formed. In unclotted blood the mean streaming velocity was 3.8 cm/s. During the clot formation the velocity decreased gradually to 1.6 cm/s and the reverse flow disappeared entirely. The changes in velocity magnitude and flow pattern appear to provide a method to differentiate clots from fluidic blood and estimate the state of coagulation

Keywords

Doppler measurement; biomedical ultrasonics; blood; coagulation; acoustic streaming; blood coagulation; clot; coagulation state estimation; flow pattern; fluidic blood; high intensity focused ultrasound; real-time imaging; reverse flow; Acoustic imaging; Acoustic measurements; Blood; Coagulation; Focusing; Streaming media; Time measurement; Ultrasonic imaging; Ultrasonic variables measurement; Velocity measurement;

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.1999.849239

Filename

849239