7A-1 SURF Imaging - A New Method for Ultrasound Contrast Agent Imaging

Author

Angelsen, Bjørn A J ; Hansen, Rune

Author_Institution

Norwegian Univ. of Sci. & Technol., Trondheim

fYear

2007

fDate

28-31 Oct. 2007

Firstpage

531

Lastpage

541

Abstract

A new method for detection of ultrasound contrast agent micro-bubbles is presented and analyzed. The method transmits dual frequency pulse complexes (frequency separation ~ 1:10), and the signals from at least two complexes with opposite polarity of the low frequency pulse is combined to suppress the signal scattered from tissue and enhance the signal scattered from micro-bubbles. The method has larger CTR and CNR than current methods using the 2^nd harmonic band of the scattered signal, especially for the high frequency above the bubble resonance frequency. The methods have special interest for high frequency imaging of neo-angiogenesis in tumors and the vasa vasorum of arterial plaque.

Keywords

biomedical ultrasonics; blood vessels; bubbles; cancer; tumours; SURF imaging; arterial plaque; bubble resonance frequency; dual frequency pulse complexes; high frequency imaging; microbubbles; neo-angiogenesis; tissue scattering; tumors; ultrasound contrast agent imaging; vasa vasorum; Band pass filters; Elasticity; Filtering; Neoplasms; Power harmonic filters; Resonance; Resonant frequency; Scattering; Signal to noise ratio; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2007. IEEE

Conference_Location

New York, NY

ISSN

1051-0117

Print_ISBN

978-1-4244-1384-3

Electronic_ISBN

1051-0117

Type

conf

DOI

10.1109/ULTSYM.2007.140

Filename

4409713