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Proceedings Paper

Modeling skull's acoustic attenuation and dispersion on photoacoustic signal
Author(s): L. Mohammadi; H. Behnam; M. R. Nasiriavanaki
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Paper 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.

Paper Details

Date Published: 23 March 2017
PDF: 7 pages
Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 100643U (23 March 2017); doi: 10.1117/12.2254508
Show Author Affiliations
L. Mohammadi, Islamic Azad Univ. (Iran, Islamic Republic of)
H. Behnam, Iran Univ. of Science and Technology (Iran, Islamic Republic of)
M. R. Nasiriavanaki, Wayne State Univ. School of Medicine (United States)
Barbara Ann Karmanos Cancer Institute (United States)


Published in SPIE Proceedings Vol. 10064:
Photons Plus Ultrasound: Imaging and Sensing 2017
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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