Measurement of Distribution of Blood-flow Change in Exposed Cortex by Laser Speckle Flowgraphy

Satoshi MATSUO; Koichiro SAKAGUCHI; Takushige KATSURA; Ya CHENG; Kyoko YAMAZAKI; Hideo KAWAGUCHI; Atsushi MAKI; Hitoshi FUJII; Eiji OKADA

doi:10.2184/lsj.36.1339

Laser Medical Science and Biology

Measurement of Distribution of Blood-flow Change in Exposed Cortex by Laser Speckle Flowgraphy

Satoshi MATSUO, Koichiro SAKAGUCHI, Takushige KATSURA, Ya CHENG, Kyoko YAMAZAKI, Hideo KAWAGUCHI, Atsushi MAKI, Hitoshi FUJII, Eiji OKADA

著者情報

Satoshi MATSUO
Department of Electronics and Electrical Engineering, Keio University,3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-0061
Koichiro SAKAGUCHI
Department of Electronics and Electrical Engineering, Keio University,3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-0061
Takushige KATSURA
Advanced Research Laboratory, Hitachi Ltd, 2520, Akanuma, Saitama
Ya CHENG
Department of Electronics and Electrical Engineering, Keio University,3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-0061
Kyoko YAMAZAKI
Advanced Research Laboratory, Hitachi Ltd, 2520, Akanuma, Saitama
Hideo KAWAGUCHI
Advanced Research Laboratory, Hitachi Ltd, 2520, Akanuma, Saitama
Atsushi MAKI
Advanced Research Laboratory, Hitachi Ltd, 2520, Akanuma, Saitama
Hitoshi FUJII
Department of Computer Science and Electronics, Kyushu Institute of Technology, 680-4, Kawazu,Iizuka,Fukuoka 820-8502
Eiji OKADA
Department of Electronics and Electrical Engineering, Keio University,3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-0061

キーワード: Laser, Speckle, Blood flow, Imaging, Brain activation

ジャーナルフリー

2008 年 36 巻 APLS 号 p. 1339-1342

DOI https://doi.org/10.2184/lsj.36.1339

詳細

抄録

The change in the cortical blood flow of guinea pigs during auditory stimulation is measured by laser speckle flowgraphy (LSFG). Accuracy of LSFG depends on the number of the frames for the blood flow calculation. The blood-flow maps of rotating disks and cortical tissues are calculated from various numbers of frames of speckle pattern, and the influence of the statistical error and averaging effect on the results is evaluated to optimise the LSFG system. The blood-flow map obtained from successive 24-30 frames can appropriately identify the change in the blood flow caused by auditory stimulation.

責任著者(Corresponding author)

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