Comparison of pulsed and continuous-wave carbon dioxide laser interactions with cutaneous tissue

Lou Reinisch; Mike Rivas; Jacob Ossoff; Walter Deriso; Jeff Sternemann; Robert H. Ossoff M.D.

doi:10.1117/12.275059

22 May 1997 Comparison of pulsed and continuous-wave carbon dioxide laser interactions with cutaneous tissue

Lou Reinisch, Mike Rivas, Jacob Ossoff, Walter Deriso, Jeff Sternemann, Robert H. Ossoff M.D.

Proceedings Volume 2970, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII; (1997) https://doi.org/10.1117/12.275059
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

Abstract

We measured the acute tissue shrinkage using a continuous wave and a pulsed carbon dioxide laser for skin resurfacing. The tissue shrinkage was measured on in vitro, non-facial human skin samples. We also examined the amount of thermal damage in the skin acutely and three days after laser resurfacing using a piglet model. The pulsed laser used a 100 microsecond pulse and delivered 500 mJ in a 3 by 3 mm square spot. The continuous wave laser was delivered with a hand piece that moved the beam in a 3.4 mm spiral during the 0.2 s irradiation. The continuous wave laser was set to 8 W. As expected, the pulsed laser showed less thermal damage acutely and after three days when compared to the continuous wave laser. However, the pulsed laser also showed more tissue shrinkage than was observed with the continuous wave laser. These results imply that the tissue shrinkage from carbon dioxide laser resurfacing may be related to the tissue removal more than collagen denaturation.

Citation Download Citation

Lou Reinisch, Mike Rivas, Jacob Ossoff, Walter Deriso, Jeff Sternemann, and Robert H. Ossoff M.D. "Comparison of pulsed and continuous-wave carbon dioxide laser interactions with cutaneous tissue", Proc. SPIE 2970, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VII, (22 May 1997); https://doi.org/10.1117/12.275059

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