Photoacoustic and thermoacoustic signal characteristics study
Rejesh, Nadaparambil Aravindaksha
Date of Issue2013
Conference on Opto-Acoustic Methods and Applications, Munich, Germany
School of Chemical and Biomedical Engineering
Photoacoustic/thermoacoustic imaging is an emerging hybrid imaging modality combining optical/microwave imaging with ultrasound imaging. The photoacoustic/thermoacoustic signal generated are affected by the nature of excitation pulse waveform, pulse width, target object size, transducer size etc. In this study k-wave was used to simulate various configurations of excitation pulse, transducer types, and target object sizes and to see their effect on the photoacoustic/thermoacoustic signals. Numerical blood vessel phantom was also used to see the effect of various pulse waveform and excitation pulse width on the reconstructed images. This study will help in optimizing transducer design and reconstruction methods to obtain the superior reconstructed image.
© 2013 OSA-SPIE. This paper was published in Proceedings Of SPIE: Opto-Acoustic Methods and Applications and is made available as an electronic reprint (preprint) with permission of OSA-SPIE. The paper can be found at the following official DOI: [http://dx.doi.org/10.1117/12.2031963]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.