Modeling and reconstruction of diffuse optical tomography using adjoint method

摘要

A new finite-element algorithm based on adjoint method is developed to solve the inverse problem of frequent-domain diffusion equation for soft tissues. With the analytical form of gradients, the adjoint method is expanded to complex domains for the reconstruction of optical parameters in diffuse optical tomography accurately and efficiently. Specific numerical simulations are carried out and compared to validate the proposed algorithm. The results demonstrate that the algorithm is stable and robust to reconstruct optical parameters.