Construction of human head voxel models from MR images for EEG analysis based on EM algorithm

Teruyoshi Sasayama, Tomoaki Iida, Takenori Oida, Shoji Hamada, Tetsuo Kobayashi

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

In order to enhance the reliability of electroencephalogram (EEG) signal source analyses, utilizing EEG lead field matrices obtained by field analyses in custom-made real head models is effective technique. Custom-made models are usually constructed from voxel models derived from magnetic resonance (MR) images using a variety of image-processing techniques. We have improved one of the techniques that select threshold levels dividing signals and noises based on the EM (expectation-maximization) algorithm. This technique contributes to rapid and high-quality voxel model acquisition. We demonstrate the following operations: (a) voxel model construction, (b) lead field calculation, and (c) simulation of EEG electrode voltage measurement induced by an equivalent current dipole (ECD), which is set in the primary motor cortex by considering application of brain-machine interfaces. The proposed technique is compared with other techniques based on the voltage differences caused by the constructed model-shape differences.

元の言語英語
ホスト出版物のタイトル2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010
ページ100-105
ページ数6
DOI
出版物ステータス出版済み - 10 15 2010
外部発表Yes
イベント2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010 - Gold Coast, QLD, オーストラリア
継続期間: 7 13 20107 15 2010

その他

その他2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010
オーストラリア
Gold Coast, QLD
期間7/13/107/15/10

Fingerprint

Magnetic resonance
Electroencephalography
Magnetic Resonance Spectroscopy
Head
Brain-Computer Interfaces
Motor Cortex
Electrodes
Voltage measurement
Brain
Image processing
Electric potential

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging
  • Neuroscience(all)

これを引用

Sasayama, T., Iida, T., Oida, T., Hamada, S., & Kobayashi, T. (2010). Construction of human head voxel models from MR images for EEG analysis based on EM algorithm. : 2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010 (pp. 100-105). [5558863] https://doi.org/10.1109/ICCME.2010.5558863

Construction of human head voxel models from MR images for EEG analysis based on EM algorithm. / Sasayama, Teruyoshi; Iida, Tomoaki; Oida, Takenori; Hamada, Shoji; Kobayashi, Tetsuo.

2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010. 2010. p. 100-105 5558863.

研究成果: 著書/レポートタイプへの貢献会議での発言

Sasayama, T, Iida, T, Oida, T, Hamada, S & Kobayashi, T 2010, Construction of human head voxel models from MR images for EEG analysis based on EM algorithm. : 2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010., 5558863, pp. 100-105, 2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010, Gold Coast, QLD, オーストラリア, 7/13/10. https://doi.org/10.1109/ICCME.2010.5558863
Sasayama T, Iida T, Oida T, Hamada S, Kobayashi T. Construction of human head voxel models from MR images for EEG analysis based on EM algorithm. : 2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010. 2010. p. 100-105. 5558863 https://doi.org/10.1109/ICCME.2010.5558863
Sasayama, Teruyoshi ; Iida, Tomoaki ; Oida, Takenori ; Hamada, Shoji ; Kobayashi, Tetsuo. / Construction of human head voxel models from MR images for EEG analysis based on EM algorithm. 2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010. 2010. pp. 100-105
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