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11 December 1996 Scanning photon density angiography of superficial vessels
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Superficial vessels are labeled with the fluorescence marker indocyanine green. Using an intensity modulated laser diode (775 nm, 220 MHz) the fluorescence is excited. The emitted modulated fluorescence intensity originating from the vessel is detected form a small area around the incident laser beam. The intensity and relative phase shift is obtained. By two dimensional scanning the course of the vessels inside the tissue can be calculated. Further a simple method describes how mean optical parameters can be calculated from backscattering data.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Juergen Helfmann, Rijk Schuetz, and Gerhard J. Mueller "Scanning photon density angiography of superficial vessels", Proc. SPIE 2927, Optical and Imaging Techniques for Biomonitoring II, (11 December 1996);

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