Modeling skull's acoustic attenuation and dispersion on photoacoustic signal

L. Mohammadi; H. Behnam; M. R. Nasiriavanaki

doi:10.1117/12.2254508

23 March 2017 Modeling skull's acoustic attenuation and dispersion on photoacoustic signal

L. Mohammadi, H. Behnam, M. R. Nasiriavanaki

Proceedings Volume 10064, Photons Plus Ultrasound: Imaging and Sensing 2017; 100643U (2017) https://doi.org/10.1117/12.2254508
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

Despite the great promising results of a recent new transcranial photoacoustic brain imaging technology, it has been shown that the presence of the skull severely affects the performance of this imaging modality. In this paper, we investigate the effect of skull on generated photoacoustic signals with a mathematical model. The developed model takes into account the frequency dependence attenuation and acoustic dispersion effects occur with the wave reflection and refraction at the skull surface. Numerical simulations based on the developed model are performed for calculating the propagation of photoacoustic waves through the skull. From the simulation results, it was found that the skull-induced distortion becomes very important and the reconstructed image would be strongly distorted without correcting these effects. In this regard, it is anticipated that an accurate quantification and modeling of the skull transmission effects would ultimately allow for skull aberration correction in transcranial photoacoustic brain imaging.

Citation Download Citation

L. Mohammadi, H. Behnam, and M. R. Nasiriavanaki "Modeling skull's acoustic attenuation and dispersion on photoacoustic signal", Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 100643U (23 March 2017); https://doi.org/10.1117/12.2254508

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available