The Direct Robin Boundary Value Parabolic System of Time-Resolved Diffuse Optical Tomography with Fluorescence

IF 0.8 4区 数学 数学研究 Pub Date : 2019-02-01 DOI:10.4208/jms.v52n3.19.07
Zakaria Belhachmi sci
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引用次数: 2

Abstract

We consider a system of parabolic PDEs with measure data modelling a problem of the time resolved diffuse optical tomography with a fluorescence term and Robin boundary conditions. We focus on the direct problem where the quantity of interest is the density of photons in the diffusion equations and which constitutes a major step to solve the inverse problem of identifiability and reconstruction of diffusion, absorption and concentration of the fluorescent markers. We study the problem under a variational form and its discretization with finite element method and we give some numerical simulation results for verification purpose as well as simulations with real data from a tomograph. AMS subject classifications: 65N21, 65J22, 78A46
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具有荧光的时间分辨漫射光学层析成像的直接Robin边值抛物系统
我们考虑一个具有测量数据的抛物型偏微分方程系统,它是一个具有荧光项和Robin边界条件的时间分辨漫射光学层析成像问题。我们将重点放在直接问题上,其中感兴趣的量是扩散方程中的光子密度,这是解决荧光标记物扩散、吸收和浓度的可识别性和重建反问题的重要一步。本文用有限元方法研究了变分形式下的问题及其离散化,并给出了一些数值模拟结果作为验证,并用层析成像的真实数据进行了模拟。AMS学科分类:65N21、65J22、78A46
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数学研究
数学研究 MATHEMATICS-
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