Contrast detection efficacy for plane vs. focused wave transmission

Author

Viti, J. ; Vos, H.J. ; de Jong, Nico ; Guidi, Francesco ; Tortoli, Piero

Author_Institution

Thorax Center, Erasmus MC, Rotterdam, Netherlands

fYear

2014

fDate

3-6 Sept. 2014

Firstpage

1750

Lastpage

1753

Abstract

Plane-wave transmission with high number of compounding angles has been suggested as a means to produce good quality images at pressure levels that do not destroy ultrasound contrast agents (UCA). In this paper, a programmable research platform is used to compare the contrast obtained by focused (F) and angled plane wave (APW) power modulation (PM) UCA imaging. The acoustic pressure levels were below 140 kPa in a phantom setup. The contrast in F-PM is typically 0.5 to 1 dB higher than in single-angle APW-PM. However, compounding significantly improves the contrast, especially at low transmit power, by 7 to 10 dB and APW-PM outperforms F-PM. This increase is attributed mainly to noise reduction caused by the coherent summation of angled plane waves. This data shows that APW-PM is more sensitive.

Keywords

acoustic noise; biomedical ultrasonics; phantoms; ultrasonic imaging; ultrasonic transmission; acoustic pressure levels; angled plane wave power modulation ultrasound contrast agent imaging; coherent summation; compounding angle number; contrast detection efficacy; focused power modulation ultrasound contrast agent imaging; focused wave transmission; noise reduction; phantom; plane wave transmission; programmable research platform; transmit power; Acoustics; Imaging; Modulation; Radio frequency; Signal to noise ratio; Ultrasonic imaging; Contrast detection; Contrast to tissue ratio; Plane wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2014 IEEE International

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/ULTSYM.2014.0434

Filename

6932209