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Journal of Biomedical Optics • Open Access

Qualitative near-infrared vascular imaging system with tuned aperture computed tomography
Author(s): Tatsuhiko Matsushita; Tosiaki Miyati; Kazuya Nakayama; Takashi Hamaguchi; Shigeki Ohtake; Yoshihiko Hayakawa; Allan G. Farman

Paper Abstract

We developed a novel system for imaging and qualitatively analyzing the surface vessels using near-infrared (NIR) radiation using tuned aperture computed tomography (TACT®). The system consisted of a NIR-sensitive CCD camera surrounded by sixty light emitting diodes (with wavelengths alternating between 700 or 810 nm). This system produced thin NIR tomograms, under 0.5 mm in slice thickness. The venous oxygenation index reflecting oxygen saturation levels calculated from NIR tomograms was more sensitive than that from the NIR images. This novel system makes it possible to noninvasively obtain NIR tomograms and accurately analyze changes in oxygen

Paper Details

Date Published: 1 July 2011
PDF: 6 pages
J. Biomed. Opt. 16(7) 076004 doi: 10.1117/1.3595424
Published in: Journal of Biomedical Optics Volume 16, Issue 7
Show Author Affiliations
Tatsuhiko Matsushita, Kanazawa Univ. (Japan)
Tosiaki Miyati, Kanazawa Univ. (Japan)
Kazuya Nakayama, Kanazawa Univ. (Japan)
Takashi Hamaguchi, Kanazawa Univ. (Japan)
Shigeki Ohtake, Kanazawa Univ. (Japan)
Yoshihiko Hayakawa, Kitami Institute of Technology (Japan)
Allan G. Farman, Univ. of Louisville (United States)

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