Title:
直交仮想チャネルを使用したマルチチャネル測定データの分析
Document Type and Number:
Japanese Patent JP5361131
Kind Code:
B2
Abstract:
The present invention introduces a method for processing multichannel measurement data achieved especially in MEG and EEG measurements. The method uses a signal space separation (SSS) method and the orthogonality of lead fields in order to calculate linear transformation from physical measurement channels to virtual channels. The geometry related to the measurement arrangement is dissipated and the number of virtual channels is clearly lower than the number of physical sensors. The concept of total information can be applied for such transformed measurement data due to orthogonality. The method offers simplified post-processing of the biomagnetic data, such as for source modelling. The total information can also be interpreted as a robust quantity describing the physiological state of a patient.
Inventors:
Ahonen Ante
Cajola matti
Nenonen Jukka
Simora Juha
Tauru Sam
Cajola matti
Nenonen Jukka
Simora Juha
Tauru Sam
Application Number:
JP2007000010A
Publication Date:
December 04, 2013
Filing Date:
January 03, 2007
Export Citation:
Assignee:
ELEKTA AB
International Classes:
A61B5/296
Foreign References:
| US20080161714 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Ryoichi Takaoka
Hayashi Ichiyoshi
Kiyoshi Kato
Ryoichi Takaoka
Hayashi Ichiyoshi
Kiyoshi Kato