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Proceedings Paper

Functional imaging on human brain activity by continuous light method
Author(s): Hui Gong; Qingming Luo; Shaoqun Zeng; Britton Chance
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Paper Abstract

Spectroscopic measurements of the brain activity are discussed in this paper. We introduced a functional near infrared imager which is made of 9 light sources and 4 pairs detectors. Each pair detector has one 850 nm and one 760 nm filtered detector. The light sources are controlled by a computer and the signals from the detectors are filtered, converted and processed by the computer. Functional images of relative changes of blood concentration and deoxygenated hemoglobin in 9 cm by 4 cm detection area are revealed. Since brain function signals afford a contrast due to blood concentration and further oxygenation changes, we focused our studies on brain function by monitoring activity minus rest images.

Paper Details

Date Published: 7 August 1998
PDF: 6 pages
Proc. SPIE 3548, Biomedical Optics and Lasers: Diagnostics and Treatment, (7 August 1998); doi: 10.1117/12.317888
Show Author Affiliations
Hui Gong, Huazhong Univ. of Science and Technology (China)
Qingming Luo, Huazhong Univ. of Science and Technology (China)
Shaoqun Zeng, Huazhong Univ. of Science and Technology (China)
Britton Chance, Univ. of Pennsylvania (United States)

Published in SPIE Proceedings Vol. 3548:
Biomedical Optics and Lasers: Diagnostics and Treatment
Junheng Li M.D.; James A. Harrington, Editor(s)

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