5 December 1996 Dual-wavelength tissue ablation concept for laser prostatectomy with the Nd:YAG/KTP laser
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Abstract
The Nd:YAG/KTP laser offers to the surgeon two wavelengths that can be used to coagulate and vaporize. Our objective was to investigate the combined effect of both wavelengths and to determine the irradiation parameters allowing the largest lesion volume. Chicken breast was irradiated ex vivo. 1064 nm and 532 nm Nd:YAG/KTP laser irradiations were performed sequentially at different combinations with variable fluence and compared to isofluent single wavelengths 40 W irradiation. Although the mean total lesion volume showed no difference between the different wavelengths combinations a significant enhancement of the maximum lesion depth was found under combined irradiation in the 20W/20W conditions. Dual wavelengths irradiation with the Nd:YAG/KTP laser thus induces a specific denaturation process which is more directional and results in an increased total lesion depth. This may represent a ne approach to increase the depth of coagulation necrosis and thus the total lesion volume, thereby improving long term results.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Franz R. Schmidlin, Franz R. Schmidlin, Guy P. Delacretaz, Guy P. Delacretaz, Michael Oswald, Michael Oswald, Stephane Rohner, Stephane Rohner, Christoph E. Iselin, Christoph E. Iselin, Patrice Jichlinski, Patrice Jichlinski, Hans-Juerg Leisinger, Hans-Juerg Leisinger, Peter Graber, Peter Graber, } "Dual-wavelength tissue ablation concept for laser prostatectomy with the Nd:YAG/KTP laser", Proc. SPIE 2923, Laser-Tissue Interaction and Tissue Optics II, (5 December 1996); doi: 10.1117/12.260728; https://doi.org/10.1117/12.260728
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