On the non-uniqueness of the inverse MEG problem

被引：47
|
作者：
Dassios, G [1 ]
Fokas, AS
Kariotou, F
机构：
[1] Univ Patras, Dept Chem Engn, Div Appl Math, GR-26110 Patras, Greece
[2] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 9EW, England
来源：
INVERSE PROBLEMS | 2005年 / 21卷 / 02期
关键词：
D O I：
10.1088/0266-5611/21/2/L01
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
It has recently been shown by Fokas and coworkers that if the brain is approximated by a homogeneous sphere, magnetoencephalographic measurements determine only the moments of one of the three scalar functions specifying the electrochemically generated current in the brain. In this letter, we show that this is a generic limitation of MEG. Indeed, this indeterminancy persists in the general case that the sphere is replaced by a starlike conductor.
引用
收藏
页码：L1 / L5
页数：5
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