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The effect of popcorn and carbonization on neodymium: YAG laser dosimetry in the canine model by A. P. Perlmutter; J. C. Vargas; R. Muschter is a Medicine article available to read on EtoBox.

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Neodymium:YAG laser irradiation of the canine prostate provides an experimental model for the study of the laser-tissue interaction in laser prostatectomy. Prostate irradiation was undertaken using right-angle-firing laser fibers through an open suprapubic cystotomy, and the procedure was monitored by video endoscopy via a perineal urethrostomy. The effects of popcorn and surface carbonization on intraprostatic heating profiles were determined by interstitial thermometry. We found that popcorn reduced intraprostatic temperatures but that continued irradiation resulted in the restoration of heating. Carbonization resulted in the loss of heating ability deep in the prostate. These observations allow the urologist to understand the thermal implications of observed surface change and to modify lasing parameters during surgery to obtain the desired laser-tissue interaction. Laser prostatectomy is an ever-increasing procedure due to its ease of performance, low morbidity, and efficacy [2,5,8,10]. The ability to deliver Nd:YAG energy to the prostate using a variety of right-angle-deflecting fibers and contact probes has resulted in many approaches to the destruction of prostate tissue. Nd

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Author

A. P. Perlmutter; J. C. Vargas; R. Muschter

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0724-4983)

Published

1995

Language

EN

Field

Medicine (Health Sciences)