Photosensitization method to improve lithotripsy with dye and alexandrite lasers

Walter Cecchetti; Andrea Tasca; Stefano Guazzieri; Filiberto Zattoni; Francesco Pagano

doi:10.1117/12.146233

28 May 1993 Photosensitization method to improve lithotripsy with dye and alexandrite lasers

Walter Cecchetti, Andrea Tasca, Stefano Guazzieri, Filiberto Zattoni, Francesco Pagano

Proceedings Volume 1879, Lasers in Urology, Gynecology, and General Surgery; (1993) https://doi.org/10.1117/12.146233
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

Laser lithotripsy is based on laser induced plasma formation. Successful stone fragmenting is dependent on power density at the fiber tip in contact with the stone and on the absorption of laser radiation by the stone itself. The use of the laser has been ineffective in the treatment of hard stones and of stones that absorb only minimal amounts of laser radiation. In our experimental and clinical studies we used Rifamycin (Rifocin) as a photosensitizer for the pulsed Dye laser and Sterile Indocyanine Green (Cardio Green) for the pulsed Alexandrite laser. We found that the use of these substances significantly increased the effectiveness of the laser in the treatment of those stones.

Citation Download Citation

Walter Cecchetti, Andrea Tasca, Stefano Guazzieri, Filiberto Zattoni, and Francesco Pagano "Photosensitization method to improve lithotripsy with dye and alexandrite lasers", Proc. SPIE 1879, Lasers in Urology, Gynecology, and General Surgery, (28 May 1993); https://doi.org/10.1117/12.146233

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