TY - GEN
T1 - Development of a multi-channel, portable optical topography system
AU - Atsumori, Hirokazu
AU - Kiguchi, Masashi
AU - Obata, Akiko
AU - Sato, Hiroki
AU - Katura, Takusige
AU - Utsugi, Kei
AU - Funane, Tsukasa
AU - Maki, Atsushi
PY - 2007/12/1
Y1 - 2007/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=57649212036&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57649212036&partnerID=8YFLogxK
U2 - 10.1109/IEMBS.2007.4353051
DO - 10.1109/IEMBS.2007.4353051
M3 - Conference contribution
C2 - 18002717
AN - SCOPUS:57649212036
SN - 1424407885
SN - 9781424407880
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
SP - 3362
EP - 3364
BT - 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
T2 - 29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
Y2 - 23 August 2007 through 26 August 2007
ER -