TY - GEN
T1 - Infrared fiber optic radiometry analysis to prevent tissue injuries during endourological laser therapy
AU - Daidoh, Yuichiro
AU - Arai, Tsunenori
AU - Inazaki, Satoshi
AU - Nakagawa, Masato
AU - Suda, Akira
AU - Kikuchi, Makoto
AU - Komine, Yukikuni
AU - Murai, Masaru
AU - Nakamura, Hiroshi
PY - 1990
Y1 - 1990
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0025539032&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025539032&partnerID=8YFLogxK
U2 - 10.1117/12.17568
DO - 10.1117/12.17568
M3 - Conference contribution
AN - SCOPUS:0025539032
SN - 0819402427
SN - 9780819402424
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 430
EP - 435
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Publ by Int Soc for Optical Engineering
T2 - Proceedings of Optical Fibers in Medicine V
Y2 - 14 January 1990 through 19 January 1990
ER -