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Journal of Biomedical Optics

Three-dimensional reconstruction of in vivo bioluminescent sources based on multispectral imaging
Author(s): Chaincy Kuo; Olivier Coquoz; Tamara L. Troy; Heng Xu; Bradley W. Rice
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Paper Abstract

A new method is described for obtaining a 3-D reconstruction of a bioluminescent light source distribution inside a living animal subject, from multispectral images of the surface light emission acquired on charge-coupled device (CCD) camera. The method uses the 3-D surface topography of the animal, which is obtained from a structured light illumination technique. The forward model of photon transport is based on the diffusion approximation in homogeneous tissue with a local planar boundary approximation for each mesh element, allowing rapid calculation of the forward Green's function kernel. Absorption and scattering properties of tissue are measured a priori as input to the algorithm. By using multispectral images, 3-D reconstructions of luminescent sources can be derived from images acquired from only a single view. As a demonstration, the reconstruction technique is applied to determine the location and brightness of a source embedded in a homogeneous phantom subject in the shape of a mouse. The technique is then evaluated with real mouse models in which calibrated sources are implanted at known locations within living tissue. Finally, reconstructions are demonstrated in a PC3M-luc (prostate tumor line) metastatic tumor model in nude mice.

Paper Details

Date Published: 1 March 2007
PDF: 12 pages
J. Biomed. Opt. 12(2) 024007 doi: 10.1117/1.2717898
Published in: Journal of Biomedical Optics Volume 12, Issue 2
Show Author Affiliations
Chaincy Kuo, Caliper Life Sciences (United States)
Olivier Coquoz, Xenogen Corp. (Switzerland)
Tamara L. Troy, Caliper Life Sciences, Inc. (United States)
Heng Xu, Xenogen Corp. (United States)
Bradley W. Rice, Caliper Life Sciences (United States)

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