Detection of calcified plaques before generation of laser-induced shockwaves: dye laser, alexandrite laser

M. Scheu; Ralf Engelhardt; Jan H. Goethlin M.D.

doi:10.1117/12.17514

1 July 1990 Detection of calcified plaques before generation of laser-induced shockwaves: dye laser, alexandrite laser

M. Scheu, Ralf Engelhardt, Jan H. Goethlin M.D.

Proceedings Volume 1201, Optical Fibers in Medicine V; (1990) https://doi.org/10.1117/12.17514
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

We investigated the possibility to use the intensity of the time resolved laser induced fluorescence signal (LIF) to discriminate between normal intima and calcified lesions by use of a pulsed dye laser (495 nm, 590 nm) and an alexandrite laser (750 nm). Experiments were performed for 83 specimens consisting of normal intima, fibro-fatty plaques, yellow--white calcified and dark hemmorhagic calcified plaques. At 495 nm an obvious intensity discrimination level was found, 39 of 40 calcified plaques were correctly classified.

Citation Download Citation

M. Scheu, Ralf Engelhardt, and Jan H. Goethlin M.D. "Detection of calcified plaques before generation of laser-induced shockwaves: dye laser, alexandrite laser", Proc. SPIE 1201, Optical Fibers in Medicine V, (1 July 1990); https://doi.org/10.1117/12.17514

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