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Proceedings Paper

Study Of Balloon Laserthermia
Author(s): Koichi Futatsuki; Koji Saifuku; Kunio Yamamoto; Nobuyuki Takeuchi; Yuzoh Kanda; Toshitaka Uehara; Yoshio Sekiguchi; Norio Daikuzono; Stephen N. Joffe
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Paper Abstract

A new surgical technique for the Nd:YAG laser, involving irradiation using a balloon filled with a light scattering substance, is described. Applications of this technique to hyperthermia, designated 'balloon laserthermia', were studied. A balloon was attached to the end of the optical fibre, and a substance to scatter the laser light was introduced into the balloon. The laser was activated after the balloon was placed in contact with the tissue. Fat emulsion was used as the scattering substance. From the results of our initial research, it is clear that a 0.25% density of the emulsion is adequate to obtain completely scattered irradiation. The effects of this balloon laserthermia on tumor-bearing mice was investigated pathologically, and more than 90% of the tumor cells in the tumor nodule became necrotic, or showed marked degeneration. As laser hyperthermia becomes possible with this technique over wider areas, we foresee wide clinical applications.

Paper Details

Date Published: 11 September 1989
PDF: 11 pages
Proc. SPIE 1066, Laser Surgery: Advanced Characterization, Therapeutics, and Systems, (11 September 1989); doi: 10.1117/12.952060
Show Author Affiliations
Koichi Futatsuki, Saitama Cancer Center (Japan)
Koji Saifuku, Saitama Cancer Center (Japan)
Kunio Yamamoto, Saitama Cancer Center (Japan)
Nobuyuki Takeuchi, Saitama Cancer Center (Japan)
Yuzoh Kanda, Saitama Cancer Center (Japan)
Toshitaka Uehara, Saitama Cancer Center (Japan)
Yoshio Sekiguchi, Surgical Laser Technologies Co (Japan)
Norio Daikuzono, Surgical Laser Technologies Co (Japan)
Stephen N. Joffe, University of Cincinnati (United States)

Published in SPIE Proceedings Vol. 1066:
Laser Surgery: Advanced Characterization, Therapeutics, and Systems
Kazuhiko Atsumi M.D.; Norman R. Goldblatt; Stephen N. Joffe M.D., Editor(s)

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