Tissue harmonic imaging

Author

Averkiou, Michalakis A.

Author_Institution

ATL Ultrasound, Bothell, WA, USA

Volume

2

fYear

2000

fDate

36800

Firstpage

1563

Abstract

Harmonic imaging was originally developed for microbubble contrast agents in the early 90s under the assumption that tissue is linear and all harmonic echoes are generated by the bubbles. In fact, tissue, like bubbles, is a nonlinear medium. Whereas the harmonic echoes from bubbles have their origins in nonlinear scattering, those from tissue are a result of nonlinear propagation. The clinical benefits of tissue harmonic imaging are reduced reverberation noise and overall clutter level, improved border delineation, increased contrast resolution, and reduced phase aberration artifacts. To a large extend these benefits are explained by the properties of nonlinear propagation of the transmitted ultrasonic pulses in the tissue

Keywords

aberrations; acoustic noise; acoustic pulses; biological tissues; biomedical ultrasonics; clutter; harmonic generation; image resolution; ultrasonic propagation; ultrasonic transmission; bubbles; clinical benefits; harmonic echoes; improved border delineation; increased contrast resolution; microbubble contrast agents; nonlinear medium; nonlinear propagation; nonlinear scattering; overall clutter level; reduced phase aberration artifacts; reduced reverberation noise; tissue harmonic imaging; transmitted ultrasonic pulses; Acoustic beams; Acoustic imaging; Acoustic propagation; Acoustic pulses; Acoustic scattering; Blood; Ear; Power harmonic filters; Pulse modulation; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.921622

Filename

921622