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Mol Imaging. 2002 Apr-Jun;1(2):82-8.

In vivo tomographic imaging of near-infrared fluorescent probes.

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  • 1Center for Molecular Imaging Research, Massachusetts General Hospital & Harvard Medical School, Bldg. 149 13th Street 5406, Charlestown, MA 02129-2060, USA.


Fluorescence imaging is increasingly used to probe protein function and gene expression in live animals. This technology could enhance the study of pathogenesis, drug development, and therapeutic intervention. In this article, we focus on three-dimensional fluorescence observations using fluorescence-mediated molecular tomography (FMT), a novel imaging technique that can resolve molecular function in deep tissues by reconstructing fluorescent probe distributions in vivo. We have compared FMT findings with conventional fluorescence reflectance imaging (FRI) to study protease function in nude mice with subsurface implanted tumors. This validation of FMT with FRI demonstrated the spatial congruence of fluorochrome activation as determined by the two techniques.

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