Fundamental and clinical studies of endoscopic Nd:YAG laser balloon irradiation for early gastric cancer

Minoru Kawaguchi; Ge Er-Jie; Kimitoshi Shitijou; Toshihiko Saito

doi:10.1117/12.136980

5 March 1993 Fundamental and clinical studies of endoscopic Nd:YAG laser balloon irradiation for early gastric cancer

Minoru Kawaguchi, Ge Er-Jie, Kimitoshi Shitijou, Toshihiko Saito

Proceedings Volume 1616, International Conference on Photodynamic Therapy and Laser Medicine; (1993) https://doi.org/10.1117/12.136980
Event: International Conference on Photodynamic Therapy and Laser Medicine, 1991, Beijing, China

Abstract

Since 1981, we have been employing endoscopic Nd:YAG laser irradiation for treatment of early gastric cancer. However, the therapeutic results have not always been satisfactory. Therefore, we have developed a new Nd:YAG laser-irradiation method which uses an endoscope fitted with a transparent thin-membrane balloon at its tip. Basic studies on this balloon method confirmed that the balloon did not affect the tissue-destructive effect of the laser. In clinical studies, the balloon method was used to treat 20 lesions. The degree of efficacy (effective: negative against cancer for at least one year after treatment) was 90%. Thus, in comparison with the conventional method, the balloon method produced clearly better therapeutic results.

Citation Download Citation

Minoru Kawaguchi, Ge Er-Jie, Kimitoshi Shitijou, and Toshihiko Saito "Fundamental and clinical studies of endoscopic Nd:YAG laser balloon irradiation for early gastric cancer", Proc. SPIE 1616, International Conference on Photodynamic Therapy and Laser Medicine, (5 March 1993); https://doi.org/10.1117/12.136980

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