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

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
出版社Publ by Int Soc for Optical Engineering
ページ430-435
ページ数6
ISBN(印刷版)0819402427, 9780819402424
DOI
出版ステータスPublished - 1990
外部発表はい
イベントProceedings of Optical Fibers in Medicine V - Los Angeles, CA, USA
継続期間: 1990 1月 141990 1月 19

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
1201
ISSN(印刷版)0277-786X

Other

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

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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