ELECTRICAL-IMPEDANCE COMPUTED-TOMOGRAPHY BASED ON A FINITE-ELEMENT MODEL
ELECTRICAL-IMPEDANCE COMPUTED-TOMOGRAPHY BASED ON A FINITE-ELEMENT MODEL
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DOI：
10.1109/tbme.1985.325526
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发表时间：
1985-01-01
影响因子：
4.6
通讯作者：
KAGAWA, Y
中科院分区：
文献类型：
--
作者：
MURAI, T;KAGAWA, Y
对电阻抗计算机断层成像进行了仿真研究。这是一个逆问题。一个领域是离散的有限元方法和迭代方法，从灵敏度定理推导出检查采取的领域表面上的铅。结果表明，在该领域的电导率分布可以估计从获得的阻抗数据的身体表面引线。仿真结果表明了阻抗体积描记法应用的有效性和局限性。有限元模型必须选择适当的提供唯一的解决方案。
A simulation study of electrical impedance computed tomography is presented. This is an inverse problem. A field is discretized by the finite element method and an iterative approach derived from the sensitivity theorem is examined for leads taken on the field surface. It is shown that the conductivity distribution in the field can be estimated from the impedance data obtained for the body surface leads. Simulation suggests the availability and the limitation for impedance plethysmography application. The finite element model must be chosen properly to provide the unique solution.