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Proceedings Paper

Computer Controlled Contact Nd:YAG Laser System For Interstitial Local Hyperthermia And PDT
Author(s): Norio Daikuzono; S N Joffe; I Fujishima
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Paper Abstract

Contact Nd:YAG laser surgery is assuming a greater importance in endoscopic and open surgery allowing coagulation, cutting and vaporization with greater precision and safety. One of contact probe allows a wider angle of irradiation and diffusion of low power laser energy using the interstitial or the touch technique for local hyperthermia. Continuously monitoring temperature sensors are placed directly into the surrounding tissue or tumor. Using a computer program interfaced with the laser and sensors, a controlled and stable temperature (e.g., 42°C) can be produced in a known volume of tissue over a prolonged period of time (e.g., 20-40 min). Using pulsed Nd:YAG laser and photosensitiser, Pheophorbide-a either laser hyperthermia or POT into malignant tumor are possible from single laser resorce. Combination method with laser hyperthermia and POT will be promisive and exclusive laser modality for cancer.

Paper Details

Date Published: 15 June 1988
PDF: 5 pages
Proc. SPIE 0907, Laser Surgery: Characterization and Therapeutics, (15 June 1988); doi: 10.1117/12.945319
Show Author Affiliations
Norio Daikuzono, Surgical Laser Technologies (Japan)
S N Joffe, University at Cincinnati Medical Center (United States)
I Fujishima, The Seirei Mikatabara General Hospital (Japan)


Published in SPIE Proceedings Vol. 0907:
Laser Surgery: Characterization and Therapeutics
Kazuhiko Atsumi; Stephen N. Joffe, Editor(s)

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