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1 August 1990 Multicolor fluorescence imaging system for tissue diagnostics
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A multicolor fluorescence imaging system for tissue diagnostics has been constructed. Examples given to illustrate the system performance are atherosclerotic plaque lesions from human artery samples and a malignant rat brain tumor model. The system simultaneously monitors fluorescence images at four different wavelengths, enabling spatial as well as spectral information to be extracted. By selection of band pass filters an artificial image of the lesion under study can be formed, based on an optimal contrast function of four fluorescence intensities. The image is constructed in a computer and displayed in false colors on a monitor. Pulsed excitation light from an N2 laser provides the possibility of using a gated detector, and in this way suppress room light to an undetectable level. Images can thus be recorded under white light illumination during visual inspection, increasing the usefulness of the system.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stefan Andersson-Engels, Jonas Johansson, and Sune Svanberg "Multicolor fluorescence imaging system for tissue diagnostics", Proc. SPIE 1205, Bioimaging and Two-Dimensional Spectroscopy, (1 August 1990);

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