1 July 2011 Qualitative near-infrared vascular imaging system with tuned aperture computed tomography
Author Affiliations +
J. of Biomedical Optics, 16(7), 076004 (2011). doi:10.1117/1.3595424
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
Tatsuhiko Matsushita, Tosiaki Miyati, Kazuya Nakayama, Takashi Hamaguchi, Shigeki Ohtake, Yoshihiko Hayakawa, Allan G. Farman, "Qualitative near-infrared vascular imaging system with tuned aperture computed tomography," Journal of Biomedical Optics 16(7), 076004 (1 July 2011). http://dx.doi.org/10.1117/1.3595424
Submission: Received ; Accepted
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KEYWORDS
Near infrared

Imaging systems

Light emitting diodes

Computed tomography

Oxygen

CCD cameras

Vascular imaging

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