Imaging cardiac activity by the D-bar method for electrical impedance tomography

被引：82

作者：

Isaacson, D. ^{[1
]}

Mueller, J. L.

Newell, J. C.

Siltanen, S.

机构：

[1] Rensselaer Polytech Inst, Dept Math Sci, Troy, NY 12180 USA

[2] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA

[3] Rensselaer Polytech Inst, Dept Biomed Engn, Troy, NY 12180 USA

[4] Tampere Univ, Dept Math, Tampere 33014, Finland

来源：

PHYSIOLOGICAL MEASUREMENT | 2006年 / 27卷 / 05期

关键词：

electrical impedance tomography; reconstruction algorithm; cardiac activity; D-bar method;

D O I：

10.1088/0967-3334/27/5/S04

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

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.

引用

页码：S43 / S50

页数：8

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