SOFIA: spatially optimal fast initial analysis of biomagnetic signals

被引：10

作者：

Bolton, JPR

Gross, J

Liu, LC

Ioannides, AA

机构：

[1] RIKEN, Lab Human Brain Dynam, BSI, Wako, Saitama 3510198, Japan

[2] Res Inst Julich, Inst Med, D-52425 Julich, Germany

[3] Open Univ, Dept Phys, Milton Keynes MK7 6AA, Bucks, England

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1999年 / 44卷 / 01期

关键词：

D O I：

10.1088/0031-9155/44/1/008

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A method of analysing biomagnetic signals is presented which focuses attention on activity in a specific region of interest. The method is based on the construction of virtual sensors, corresponding to linear combinations of lead fields that are optimally localized within the region of interest. This method is fast and stable. It is tested against physiologically plausible computer generated signals and also against more elaborate analysis of real data. The results show that the method can be very effective as a fast scanning tool identifying activity from pre-defined regions of interest.

引用

页码：87 / 103

页数：17

共 18 条

[1]

Bamidis PD, 1995, NEUROREPORT, V7, P17

[2] MAGNETIC-FIELDS OF A DIPOLE IN SPECIAL VOLUME CONDUCTOR SHAPES [J].