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

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1900-1901
ページ数2
ジャーナルAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
4
出版ステータスPublished - 1998
外部発表はい
イベントProceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, China
継続期間: 1998 10月 291998 11月 1

ASJC Scopus subject areas

  • 信号処理
  • 生体医工学
  • コンピュータ ビジョンおよびパターン認識
  • 健康情報学

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