Imaging cardiac activity by the D-bar method for electrical impedance tomography
Imaging cardiac activity by the D-bar method for electrical impedance tomography
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DOI：
10.1088/0967-3334/27/5/s04
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发表时间：
2006-05-01
影响因子：
3.2
通讯作者：
Siltanen, S.
中科院分区：
文献类型：
--
作者：
Isaacson, D.;Mueller, J. L.;Siltanen, S.
描述了一种实用的D-bar算法，用于从二维几何结构中电极上的EIT数据重建电导率变化。该算法基于Nachman（1996）的全局唯一性证明。数学。143 71-96)的二维逆电导率问题。结果显示了从放置在人体胸部周围的电极上收集的数据重建的结果，以重建躯干的二维截面。图像显示心脏周期中电导率的变化。
A practical D-bar algorithm for reconstructing conductivity changes from EIT data taken on electrodes in a 2D geometry is described. The algorithm is based on the global uniqueness proof of Nachman (1996 Ann. Math. 143 71-96) for the 2D inverse conductivity problem. Results are shown for reconstructions from data collected on electrodes placed around the circumference of a human chest to reconstruct a 2D cross-section of the torso. The images show changes in conductivity during a cardiac cycle.