MINIMUM-NORM ESTIMATION IN A BOUNDARY-ELEMENT TORSO MODEL

被引：28
|
作者：
NENONEN, JT [1 ]
HAMALAINEN, MS [1 ]
ILMONIEMI, RJ [1 ]
机构：
[1] HELSINKI UNIV TECHNOL,LOW TEMP LAB,SF-02150 ESPOO,FINLAND
来源：
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING | 1994年 / 32卷 / 01期
关键词：
BIOMAGNETISM; INVERSE PROBLEM; MINIMUM-NORM ESTIMATE;
D O I：
10.1007/BF02512477
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The paper deals with the bioelectric and biomagnetic inverse problems. The authors present a estimate primary-current distributions in a homogeneous, realistically shaped boundary-element torso model. The reconstruction surface is triangulated to keep the procedure computationally feasible. The minimum-norm estimate is computed on the basis of separate electric and magnetic signals, as well as from combined data. The method can be used both for heart and brain studies. Simulation results for current-dipole sources in a homogeneous realistic torso are discussed.
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页码：43 / 48
页数：6
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