Air bubble in an ultrasound field: theoretical and optical results

Author

Palanchon, Peggy ; Bouakaz, Ayache ; Versluis, Michel ; de Jong, Nico

Author_Institution

Dept. of Cardiology & Exp. Echocardiography, Erasmus Med. Center, Rotterdam, Netherlands

Volume

1

fYear

2004

fDate

23-27 Aug. 2004

Firstpage

210

Abstract

The radial motion of a gas bubble has been widely investigated in various studies using different theoretical models. The aim of this study is to compare, qualitatively and quantitatively, the results obtained by optical recording with those of a theoretical model. Bubble oscillations were optically recorded using an ultrafast digital camera, Brandaris. The radius-time, R(t), curves are directly computed from 128 video frames. The resting diameters of the air bubbles were 26-100 μm. The ultrasound field was defined as an 8 cycle pulse at a frequency of 130 kHz generating an acoustic pressure of 10-150 kPa. The time and the frequency response of the bubble radial motion were compared to the Keller model. From the results, it is concluded that the Keller model can be used to accurately predict the fundamental and harmonic behavior of gas bubbles.

Keywords

acoustic field; bubbles; fluid oscillations; image motion analysis; image sequences; ultrasonics; video recording; 10 to 150 kPa; 130 kHz; 26 to 100 micron; Keller model; air bubbles; bubble oscillations; digital camera; frequency response; gas bubble radial motion; optical recording; radius-time curve; time response; ultrasound field; Acoustic pulses; Biomedical optical imaging; Cardiology; Equations; Frequency; Optical harmonic generation; Optical recording; Resonance; Ultrafast optics; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2004 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-8412-1

Type

conf

DOI

10.1109/ULTSYM.2004.1417704

Filename

1417704