Improvement of near-infrared topography by optode arrangement and reconstruction algorithm using spatial sensitivity profile

Hiroshi Kawaguchi, Toshiyuki Hayashi, Toshinori Kato, Eiji Okada

研究成果: Conference contribution

抄録

Near-infrared topographic imaging can noninvasively measure the distribution of brain activation in the cortex. The near-infrared light is strongly scattered in the superficial tissues and the volume of tissue sampled by a source-detector pair of the imaging system is broadly distributed in the cortical tissue. This poses results in poor spatial resolution and contrast in the topographic images. In this study, we propose reconstruction algorithm for near- infrared topographic imaging using the spatial sensitivity profile. The profile of absorption change in the head model is calculated to evaluate the proposed algorithm. The width of the profiles calculated by the proposed algorithm is smaller than that by the conventional mapping algorithm. The profiles calculated by the proposed algorithm agree with the correct distribution when the interval of the source-detector pairs is less than 8 mm.

本文言語English
ホスト出版物のタイトルAPBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003
出版社Institute of Electrical and Electronics Engineers Inc.
ページ314-315
ページ数2
ISBN(電子版)0780379438, 9780780379435
DOI
出版ステータスPublished - 2003
イベントIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003 - Kyoto-Osaka-Nara, Japan
継続期間: 2003 10月 202003 10月 22

出版物シリーズ

名前APBME 2003 - IEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003

Other

OtherIEEE EMBS Asian-Pacific Conference on Biomedical Engineering 2003, APBME 2003
国/地域Japan
CityKyoto-Osaka-Nara
Period03/10/2003/10/22

ASJC Scopus subject areas

  • 生体医工学

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