LOCAL REGULARIZATION IN THE INVERSE PROBLEM OF ELECTROCARDIOGRAPHY

被引：0

作者：

Potyagaylo, D. ^{[1
]}

Schulze, W. H. W. ^{[1
]}

Doessel, O. ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Biomed Engn, Karlsruhe, Germany

来源：

BIOMEDICAL ENGINEERING-BIOMEDIZINISCHE TECHNIK | 2013年 / 58卷

关键词：

Inverse problem of ECG; Tikhonov local regularization;

D O I：

10.1515/bmt-2013-4159

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The inverse problem of ECG is the task of cardiac source reconstruction from the measured body surface potential maps (BSPM). It is ill-posed and therefore requires regularization, which is usually applied uniformly to the whole heart geometry. In order to improve the solution quality and localize potentials extrema we propose a local regularization method: the weighting is done iteratively according to the solution spatial content. The performed test showed the ability of the new method to overcome over-smoothing and to better reconstruct strong solution gradients.

引用

页数：2

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