Fluorescence-enhanced tomographic imaging in large phantoms using gain-modulated ICCD camera

Anuradha Godavarty; Eva Marie Sevick-Muraca; Margaret J. Eppstein; Chaoyang Zhang

doi:10.1117/12.476531

12 September 2003 Fluorescence-enhanced tomographic imaging in large phantoms using gain-modulated ICCD camera

Anuradha Godavarty, Eva Marie Sevick-Muraca, Margaret J. Eppstein, Chaoyang Zhang

Proceedings Volume 4949, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIII; (2003) https://doi.org/10.1117/12.476531
Event: Biomedical Optics, 2003, San Jose, CA, United States

Abstract

A frequency-domain photon migration (FDPM) imager employing an image-intensified CCD camera for fast data acquisition on a large tissue-mimicking phantom (1087 ml) is described. Fluorescence-enhanced imaging is performed employing frequency-domain techniques at 100 MHz in order to obtain the boundary measurements of phase and amplitude and to recover the interior optical maps using the first principles of light propagation. The effect of refractive-index parameter in the boundary condition of the light propagation model is not significant due to the large phantom volume and its curvilinear nature. Initial experiments were performed under perfect (1:0 contrast) and imperfect (100:1 contrast) uptake cases using indocyanine green as the contrast agent. Preliminary 3D image reconstructions using the approximate extended Kalman filter (AEKF) algorithm are presented.

Citation Download Citation

Anuradha Godavarty, Eva Marie Sevick-Muraca, Margaret J. Eppstein, and Chaoyang Zhang "Fluorescence-enhanced tomographic imaging in large phantoms using gain-modulated ICCD camera", Proc. SPIE 4949, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XIII, (12 September 2003); https://doi.org/10.1117/12.476531

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KEYWORDS

3D modeling

Optical fibers

Data modeling

Refractive index

Data acquisition

Imaging systems

Cameras

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