Influence of orientation and area of the extended cortical current source on the magnetoencephalography (MEG) inverse problem
- Authors
- Choi, Jong-Ho; Luan, Feng; Kim, Min-Hyuk; Jung, Hyun-Kyo; Im, Chang-Hwan
- Issue Date
- Jun-2012
- Publisher
- Springer Verlag
- Keywords
- Distributed source model; Magnetoencephalography (MEG); Neuroelectromagnetic inverse problem; Source imaging
- Citation
- Biomedical Engineering Letters, v.2, no.2, pp.124 - 128
- Indexed
- SCOPUS
KCI
OTHER
- Journal Title
- Biomedical Engineering Letters
- Volume
- 2
- Number
- 2
- Start Page
- 124
- End Page
- 128
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27521
- DOI
- 10.1007/s13534-012-0061-z
- ISSN
- 2093-9868
- Abstract
- Purpose: In this paper, we investigated the influence of orientation and activation area of extended cortical current sources upon the solutions of magnetoencephalography (MEG) inverse problems. Methods: Extensive simulation studies were performed with artificial MEG datasets generated using a realistic head geometry model. Results: Our simulation studies demonstrated that as the source activation area was extended beyond a threshold level, the radial component of cortical sources was weakened and thus the accuracy of MEG inverse problem was enhanced. Conclusions: These are important findings suggesting that one may not need to be concerned too much about the insensitivity of MEG to radial sources in many practical MEG measurements. ? 2012 Korean Society of Medical and Biological Engineering and Springer.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 생체공학전공 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27521)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.