Explanation of the fiber optic probe method signal by means of the time-resolved photography for laser ablation bubble

Miya Yoshikawa, Makoto Hasegawa, Masato Yano, Akio Nakajima, Tsunenori Arai, Makoto Kikuchi, Minoru Obara

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

Abstract

We have developed the fiber optic probe method to monitor the ablation bubbles previously. The backscattered light of the probe laser from the ablation area was monitored through the same fiber of which the Ho:YAG laser pulse was delivered. This method may become available in vivo. We measured the decay time of the backscattered light waveform. The theoretically explanation showed that the calculated bubble collapse time approximately coincided with the decay time of waveform. Since the ablation bubble collapse is strongly affected by mechanical properties of its adjacent tissues, the decay time suggested their surrounding tissue types. We demonstrated the possibility of the tissue characterization by this probe method. In order to know the characteristic of the observed backscattered light to understand our probe method capability for tissue characterization, we performed comparative measurements for the ablation bubble by means of time-resolved photography and the probe method.

Original languageEnglish
Title of host publicationConference Proceedings - Lasers and Electro-Optics Society Annual Meeting
PublisherPubl by IEEE
Pages264-265
Number of pages2
ISBN (Print)0780312635
Publication statusPublished - 1993
EventAnnual Meeting of the IEEE Lasers and Electro-Optics Society - San jose, CA, USA
Duration: 1993 Nov 151993 Nov 18

Publication series

NameConference Proceedings - Lasers and Electro-Optics Society Annual Meeting

Other

OtherAnnual Meeting of the IEEE Lasers and Electro-Optics Society
CitySan jose, CA, USA
Period93/11/1593/11/18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Yoshikawa, M., Hasegawa, M., Yano, M., Nakajima, A., Arai, T., Kikuchi, M., & Obara, M. (1993). Explanation of the fiber optic probe method signal by means of the time-resolved photography for laser ablation bubble. In Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting (pp. 264-265). (Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting). Publ by IEEE.