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Proceedings Paper

Measurements of temporal-spatial change in blood flow and volume in exposed cortex of guinea pig evoked by auditory stimulation
Author(s): Haruka Nakayama; Koichiro Sakaguchi; Satoshi Matsuo; Naotaka Sakashita; Takushige Katsura; Kyoko Yamazaki; Naoki Tanaka; Hideo Kawaguchi; Atsushi Maki; Eiji Okada
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Paper Abstract

The changes in cortical blood flow and blood volume of guinea pigs during auditory stimulation are measured by optical imaging systems. In this study, the change in blood flow distribution was measured by the laser speckle method and the change in blood volume was measured by the multi-spectral imaging system. The significant increase in blood flow and volume was observed around one side of the auditory area just after the onset of the stimulation. The decrease in blood volume around the other side of the auditory area was observed whereas the blood flow surrounding the auditory area is decreased during the post-resting period.

Paper Details

Date Published: 10 July 2009
PDF: 6 pages
Proc. SPIE 7369, Diffuse Optical Imaging II, 73691G (10 July 2009); doi: 10.1117/12.831655
Show Author Affiliations
Haruka Nakayama, Keio Univ. (Japan)
Koichiro Sakaguchi, Keio Univ. (Japan)
Satoshi Matsuo, Keio Univ. (Japan)
Naotaka Sakashita, Keio Univ. (Japan)
Takushige Katsura, Hitachi, Ltd. (Japan)
Kyoko Yamazaki, Hitachi, Ltd. (Japan)
Naoki Tanaka, Hitachi, Ltd. (Japan)
Hideo Kawaguchi, Hitachi, Ltd. (Japan)
Atsushi Maki, Hitachi, Ltd. (Japan)
Eiji Okada, Keio Univ. (Japan)

Published in SPIE Proceedings Vol. 7369:
Diffuse Optical Imaging II
Rinaldo Cubeddu; Andreas H. Hielscher, Editor(s)

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