Isaacson D, Mueller J L, Newell J C, Siltanen S
Department of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
Physiol Meas. 2006 May;27(5):S43-50. doi: 10.1088/0967-3334/27/5/S04. Epub 2006 Apr 18.
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.
描述了一种实用的D-bar算法，用于从二维几何结构中电极采集的电阻抗断层成像（EIT）数据重建电导率变化。该算法基于Nachman（1996年，《数学年刊》143卷，71 - 96页）对二维逆电导率问题的全局唯一性证明。展示了从围绕人体胸部圆周放置的电极收集的数据进行重建的结果，以重建躯干的二维横截面。图像显示了心动周期中的电导率变化。
