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Proceedings Paper

Physical evaluation of laser prostatectomy devices
Author(s): Christiaan F. P. van Swol; Rudolf M. Verdaasdonck; Jaap Mooibroek; Tom A. Boon
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Paper Abstract

In this study, the optical and thermal characteristics of the various commercially available devices for treating benign prostatic hyperplasia, using transurethrally delivered Nd:YAG laser light, were evaluated. To calculate the optimal parameters for each delivery system, the created tissue effect was dynamically modeled. Optically the devices were evaluated using by measuring the 3D irradiance distribution in a water environment. The thermal behavior of the devices was studied by a specially developed thermal imaging technique. The optical and thermal characteristics of the devices together with optical and thermal parameters of prostatic tissue were used as an input for a theoretical model to predict the extent of laser induced permanent damage and thus the effect of the device. Results show the influence of beam profile, spot size and secondary reflections of each laser prostatectomy device and modeling its therapeutic effect, will contribute to obtain an optimal dosimetry with best fitted parameters for each individual device.

Paper Details

Date Published: 2 May 1994
PDF: 9 pages
Proc. SPIE 2129, Lasers in Urology, (2 May 1994); doi: 10.1117/12.175043
Show Author Affiliations
Christiaan F. P. van Swol, Univ. Hospital Utrecht (Netherlands)
Rudolf M. Verdaasdonck, Univ. Hospital Utrecht (Netherlands)
Jaap Mooibroek, Univ. Hospital Utrecht (Netherlands)
Tom A. Boon, Univ. Hospital Utrecht (Netherlands)


Published in SPIE Proceedings Vol. 2129:
Lasers in Urology
Graham M. Watson; Rudolf W. Steiner; Douglas E. Johnson, Editor(s)

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