A modified linear estimation approach for solving biomagnetic inverse problems

被引：4

作者：

Brauer, H

Kosch, O

Tenner, U

Wiechmann, H

Arlt, A

机构：

[1] Technical University of Ilmenau, D-98684 Ilmenau

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1996年 / 32卷 / 03期

关键词：

D O I：

10.1109/20.497483

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A computer simulation study of the biomagnetic inverse problem was performed. A realistically shaped, multicompartment boundary element model of the human body was used to localize dipolar current sources within the heart. The minimum-norm solution of the often used Linear Estimation Approach (LEA) was modified to improve localization accuracy. By multiplying the lead field matrix with two new weighting matrices and implementing a procedure for shifting the reconstructed current dipoles we could avoid the well-known blurring effect which can be observed if the common LEA is used. The new Modified Linear Estimation Approach (MLEA) was applied to localization of different dipole configurations. It can be used to reconstruct volume sources as well.

引用

页码：1298 / 1301

页数：4

共 7 条

[1]

BRAUER H, 1993, 9 INT C BIOM WIEN 19, P348

[2]

BRAUER H, 1994, P 6 INT IGTE S GRAZ, P270

[3] CONTINUOUS PROBABILISTIC SOLUTIONS TO THE BIOMAGNETIC INVERSE PROBLEM [J].