Dual-wavelength tissue ablation concept for laser prostatectomy with the Nd:YAG/KTP laser

Franz R. Schmidlin M.D.; Guy P. Delacretaz; Michael Oswald M.D.; Stephane Rohner; Christoph E. Iselin M.D.; Patrice Jichlinski; Hans-Juerg Leisinger M.D.; Peter Graber M.D.

doi:10.1117/12.260728

5 December 1996 Dual-wavelength tissue ablation concept for laser prostatectomy with the Nd:YAG/KTP laser

Franz R. Schmidlin M.D., Guy P. Delacretaz, Michael Oswald M.D., Stephane Rohner, Christoph E. Iselin M.D., Patrice Jichlinski, Hans-Juerg Leisinger M.D., Peter Graber M.D.

Author Affiliations +

Proceedings Volume 2923, Laser-Tissue Interaction and Tissue Optics II; (1996) https://doi.org/10.1117/12.260728
Event: BiOS Europe '96, 1996, Vienna, Austria

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.

Citation Download Citation

Franz R. Schmidlin M.D., Guy P. Delacretaz, Michael Oswald M.D., Stephane Rohner, Christoph E. Iselin M.D., Patrice Jichlinski, Hans-Juerg Leisinger M.D., and Peter Graber M.D. "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); https://doi.org/10.1117/12.260728

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available