Indocyanine green enhanced diode laser ablation for porcine gastric wall with ablation depth monitoring using scattering light

Tsunenori Arai, Takuya Hayashi, Naoko Nakamura, Shoryoku Hino, Makoto Kikuchi, Sohichiro Miura, Hiroaki Suzuki, Hisao Tajiri

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

4 Citations (Scopus)

Abstract

We developed laser ablation depth monitoring using scattering light on indocyanine green (ICG) enhanced diode laser ablation for gastric wall. We have developed selective diode laser ablation for ICG stained submucosa to treat submucosal gastric cancer. To prevent gastric perforation, realtime ablation depth monitoring should be applied to this treatment in spite of the ablation depth can be roughly judged through gastric endoscope by ablation surface color change. The back scattered light spectrum of the diode laser from the ablation area may be influenced by surface absorption and plume absorption. We observed the scattering light spectrum and found small spectral dip at ICG absorption wavelength. We demonstrated that this dip depth was corresponded to the remained ICG stained submucosal layer thickness. We concluded that this simple spectral monitoring may be effective to prevent gastric perforation during ICG enhanced diode laser ablation therapy.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
EditorsH.K. Chang, Y.T. Zhang
PublisherIEEE
Pages1900-1901
Number of pages2
Volume4
Publication statusPublished - 1998
Externally publishedYes
EventProceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, China
Duration: 1998 Oct 291998 Nov 1

Other

OtherProceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6)
CityHong Kong, China
Period98/10/2998/11/1

Fingerprint

Indocyanine Green
Laser ablation
Ablation
Light scattering
Semiconductor lasers
Monitoring
Endoscopy
Color
Wavelength

ASJC Scopus subject areas

  • Bioengineering

Cite this

Arai, T., Hayashi, T., Nakamura, N., Hino, S., Kikuchi, M., Miura, S., ... Tajiri, H. (1998). Indocyanine green enhanced diode laser ablation for porcine gastric wall with ablation depth monitoring using scattering light. In H. K. Chang, & Y. T. Zhang (Eds.), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 4, pp. 1900-1901). IEEE.

Indocyanine green enhanced diode laser ablation for porcine gastric wall with ablation depth monitoring using scattering light. / Arai, Tsunenori; Hayashi, Takuya; Nakamura, Naoko; Hino, Shoryoku; Kikuchi, Makoto; Miura, Sohichiro; Suzuki, Hiroaki; Tajiri, Hisao.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. ed. / H.K. Chang; Y.T. Zhang. Vol. 4 IEEE, 1998. p. 1900-1901.

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

Arai, T, Hayashi, T, Nakamura, N, Hino, S, Kikuchi, M, Miura, S, Suzuki, H & Tajiri, H 1998, Indocyanine green enhanced diode laser ablation for porcine gastric wall with ablation depth monitoring using scattering light. in HK Chang & YT Zhang (eds), Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 4, IEEE, pp. 1900-1901, Proceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6), Hong Kong, China, 98/10/29.
Arai T, Hayashi T, Nakamura N, Hino S, Kikuchi M, Miura S et al. Indocyanine green enhanced diode laser ablation for porcine gastric wall with ablation depth monitoring using scattering light. In Chang HK, Zhang YT, editors, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 4. IEEE. 1998. p. 1900-1901
Arai, Tsunenori ; Hayashi, Takuya ; Nakamura, Naoko ; Hino, Shoryoku ; Kikuchi, Makoto ; Miura, Sohichiro ; Suzuki, Hiroaki ; Tajiri, Hisao. / Indocyanine green enhanced diode laser ablation for porcine gastric wall with ablation depth monitoring using scattering light. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. editor / H.K. Chang ; Y.T. Zhang. Vol. 4 IEEE, 1998. pp. 1900-1901
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abstract = "We developed laser ablation depth monitoring using scattering light on indocyanine green (ICG) enhanced diode laser ablation for gastric wall. We have developed selective diode laser ablation for ICG stained submucosa to treat submucosal gastric cancer. To prevent gastric perforation, realtime ablation depth monitoring should be applied to this treatment in spite of the ablation depth can be roughly judged through gastric endoscope by ablation surface color change. The back scattered light spectrum of the diode laser from the ablation area may be influenced by surface absorption and plume absorption. We observed the scattering light spectrum and found small spectral dip at ICG absorption wavelength. We demonstrated that this dip depth was corresponded to the remained ICG stained submucosal layer thickness. We concluded that this simple spectral monitoring may be effective to prevent gastric perforation during ICG enhanced diode laser ablation therapy.",
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