1 April 2001 Near-infrared fluorescent dyes for enhanced contrast in optical mammography: phantom experiments
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J. of Biomedical Optics, 6(2), (2001). doi:10.1117/1.1350561
Optical mammography with near-infrared (NIR) light using time-domain, frequency-domain, or continuous-wave techniques is a novel imaging modality to locate human breast tumors. By investigating excised specimens of normal and diseased mamma tissue we were able to demonstrate that differences in their scattering properties are a poor predictive parameter for normal and diseased mamma tissue. This paper describes the application of a NIR dye to improve the differentiation between breast tumors and normal tissue in a rat model. The NIR dye furnished a high tumor-to-tissue contrast ratio (6:1) in fluorescence images. Furthermore, this dye was used to develop liquid scattering phantoms with absorbing and fluorescent inhomogeneities. Using frequency-domain and time-domain instrumentation these inhomogeneities were localized at sufficient contrast by their increased absorption and fluorescence. Contrast between inhomogeneities and surrounding medium could be improved by combining fluorescence and transmittance images.
Bernd Ebert, Uwe Sukowski, Dirk Grosenick, Heidrun Wabnitz, K. Thomas Moesta, Kai Licha, Andreas Becker, Wolfhard Semmler, Peter M. Schlag, Herbert H. Rinneberg, "Near-infrared fluorescent dyes for enhanced contrast in optical mammography: phantom experiments," Journal of Biomedical Optics 6(2), (1 April 2001). https://doi.org/10.1117/1.1350561

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