Infrared fiber optic radiometry analysis to prevent tissue injuries during endourological laser therapy

Yuichiro Daidoh, Tsunenori Arai, Satoshi Inazaki, Masato Nakagawa, Akira Suda, Makoto Kikuchi, Yukikuni Komine, Masaru Murai, Hiroshi Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To prevent a false laser irradiation to an urotherial tissue during the laser stone fragmentation, we applied the fiber-optic pulsed photothermal radiometry (PPTR) to discrimination between urinary stones and urotherial tissues. The experiment was made in vitro with the various wet sample of the urinary stones and the canine urotherial tissues. Three different lasers, ultraviolet argon laser (UV Ar laser), visible argon laser(Vis. Ar laser) and carbon monoxide laser(CO laser), were used for excitation light sources of the PPTR method and compared to obtain clear discrimination between the stones and the tissue. The UV Ar laser gave the best result among them. The wet canine urotherial tissue was clearly differential from the urinary stones by the measurement of the e-folding decay time of the PPTR waveform.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsAbraham Katzir
PublisherPubl by Int Soc for Optical Engineering
Pages430-435
Number of pages6
ISBN (Print)0819402427
Publication statusPublished - 1990 Dec 1
EventProceedings of Optical Fibers in Medicine V - Los Angeles, CA, USA
Duration: 1990 Jan 141990 Jan 19

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1201
ISSN (Print)0277-786X

Other

OtherProceedings of Optical Fibers in Medicine V
CityLos Angeles, CA, USA
Period90/1/1490/1/19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Daidoh, Y., Arai, T., Inazaki, S., Nakagawa, M., Suda, A., Kikuchi, M., Komine, Y., Murai, M., & Nakamura, H. (1990). Infrared fiber optic radiometry analysis to prevent tissue injuries during endourological laser therapy. In A. Katzir (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 430-435). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1201). Publ by Int Soc for Optical Engineering.