耦合光声与漫射光学成像中多系数重建的三阶段方法
A three-stage method for reconstructing multiple coefficients in coupled photoacoustic and diffuse optical imaging
AI总结：
本文提出一种三阶段方法，利用漫射光学层析成像补充的光学电流数据，在定量光声层析成像中同时重建吸收、扩散和Grüneisen系数，数值模拟验证了其有效性与唯一性。
摘要：
本文研究了定量光声层析成像中的逆问题，并附加了由漫射光学层析成像补充的光学电流数据。我们提出了一种三阶段图像重建方法，用于同时恢复吸收系数、扩散系数和Grüneisen系数。通过数值模拟，我们证明了：（i）当Grüneisen系数已知时，光学测量的加入使得散射系数和吸收系数的重建更加准确；（ii）当Grüneisen系数未知时，光学电流测量的加入使我们能够唯一地重建Grüneisen系数、散射系数和吸收系数。基于合成数据的数值模拟被呈现以证明所提出思想的有效性。
英文摘要：
This paper studies inverse problems in quantitative photoacoustic tomography with additional optical current data supplemented from diffuse optical tomography. We propose a three-stage image reconstruction method for the simultaneous recovery of the absorption, diffusion, and Grüneisen coefficients. We demonstrate, through numerical simulations, that: (i) when the Grüneisen coefficient is known, the addition of the optical measurements allows a more accurate reconstruction of the scattering and absorption coefficients; and (ii) when the Grüneisen coefficient is not known, the addition of optical current measurements allows us to reconstruct uniquely the Grüneisen, the scattering and absorption coefficients. Numerical simulations based on synthetic data are presented to demonstrate the effectiveness of the proposed idea.
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