17 May 1996 LITT on canine prostates: an in-vivo study to compare the effects of different wavelengths
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Abstract
Laser induced interstitial thermotherapy is a new minimally invasive procedure for the treatment of benign prostatic hyperplasia. Since high power laser diode lasers became available for clinical use a comparison of tissue effects of different wavelengths under controlled conditions is needed. In this study three different laser wavelengths were compared at output powers of 4 W and 8 W with 10 min and 90 s irradiation time, respectively, resulting in applied energies of 2700 J and 720 J. The results in both groups showed that the use of a wavelength close to the relative water absorption peak at 980 nm gave tendentiously but not significantly larger coagulated areas. Furthermore it became obvious that the use of 8 W for 90 sec results in higher maximum temperatures and larger lesions compared to the application of 4 W over a period of 10 min, although the energy used in the latter group was 4 fold higher.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ronald Sroka, Ronald Sroka, Aaron P. Perlmutter, Aaron P. Perlmutter, Thomas Martin, Thomas Martin, Rolf Muschter, Rolf Muschter, } "LITT on canine prostates: an in-vivo study to compare the effects of different wavelengths", Proc. SPIE 2671, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VI, (17 May 1996); doi: 10.1117/12.240027; https://doi.org/10.1117/12.240027
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