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简述了光学ＣＴ正模型的有限元（ＦＥＭ）解理论，给出了二维圆形组织体光学ＣＴ正问题的有限元法解的数值模拟结果，该结果对于生物组织体内光子传输行为以及光ＣＴ逆问题的理论和实验研究具有重要的指导意义
The finite element (FEM) solution theory of the positive model of optical CT is briefly introduced. The numerical simulation results of the finite element method for the positive problem of two-dimensional circular tissue optical CT are given. The results of the numerical simulation for the photon transport in vivo, The theory and experiment of CT inverse problem have important guiding significance