Paper
14 June 2013 Image reconstruction in quantitative photoacoustic tomography using the radiative transfer equation and the diffusion approximation
Tanja Tarvainen, Aki Pulkkinen, Ben T. Cox, Jari P. Kaipio, Simon R. Arridge
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Abstract
Quantitative photoacoustic tomography is an emerging imaging technique aiming at estimating the distribution of optical parameters inside tissue from photoacoustic image which is formed by combining optical information and ultrasound propagation. In this paper reconstruction of absorption and scattering distributions using the radiative transfer equation and the diffusion approximation as forward models for light propagation is investigated. Data is simulated using Monte Carlo method and different size target domains are considered. The results show that the radiative transfer equation can estimate both absorption and scattering distributions with good accuracy. Furthermore, in the simulated test cases, the diffusion approximation can produce as good estimates for absorption as the radiative transfer equation.
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Tanja Tarvainen, Aki Pulkkinen, Ben T. Cox, Jari P. Kaipio, and Simon R. Arridge "Image reconstruction in quantitative photoacoustic tomography using the radiative transfer equation and the diffusion approximation", Proc. SPIE 8800, Opto-Acoustic Methods and Applications, 880006 (14 June 2013); https://doi.org/10.1117/12.2032498
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KEYWORDS
Scattering

Absorption

Monte Carlo methods

Data modeling

Inverse optics

Geometrical optics

Tissue optics

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