Development of a multi-channel, portable optical topography system

Hirokazu Atsumori, Masashi Kiguchi, Akiko Obata, Hiroki Sato, Takusige Katura, Kei Utsugi, Tsukasa Funane, Atsushi Maki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Citations (Scopus)

Abstract

Optical topography (OT) based on near infrared spectroscopy (NIRS) is useful for measuring changes in the concentrations of oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) in brain tissues non-invasively. Conventional OT systems limit subjects' ranges of movement to within the length of optical fibers these systems require for irradiating light on the scalp and detecting light transmitted through the tissues in the human head. We developed a prototype of a multi-channel, portable OT system without optical fibers. We used the portable system to measure changes in the concentrations of oxy-Hb and deoxy-Hb in the frontal cortex while the subjects performed a word fluency task. The results show typical changes in hemoglobin concentrations during the task and suggest the prototype system can be used to investigate brain functions in the frontal cortex.

Original languageEnglish
Title of host publication29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
Pages3362-3364
Number of pages3
DOIs
Publication statusPublished - 2007 Dec 1
Event29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 - Lyon, France
Duration: 2007 Aug 232007 Aug 26

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN (Print)0589-1019

Conference

Conference29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
CountryFrance
CityLyon
Period07/8/2307/8/26

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ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

Cite this

Atsumori, H., Kiguchi, M., Obata, A., Sato, H., Katura, T., Utsugi, K., Funane, T., & Maki, A. (2007). Development of a multi-channel, portable optical topography system. In 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 (pp. 3362-3364). [4353051] (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). https://doi.org/10.1109/IEMBS.2007.4353051