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Proceedings Paper

Combined guidance technique using angioscope and fluoroscope images for CO laser angioplasty: in-vivo animal experiment
Author(s): Tsunenori Arai; Kyoichi Mizuno; Masami Sakurada; Akira Miyamoto M.D.; Koh Arakawa; Akira Kurita; Akira Suda; Makoto Kikuchi; Haruo Nakamura; Atsushi Utsumi; Yoshiro Akai; Kiyoshi Takeuchi
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Paper Abstract

The combined guidance technique using angioscope and fluoroscope (i.e. angiography) images for CO laser angioplasty was demonstrated in vivo animal experiment. The newly developed total occlusion model which has been produced by a long term transplantation of ChitinR tube in canine femoral artery was ablated by the contact irradiation of CO laser. A thin laser angioscope catheter, 5F in outer diameter, was inserted from total carotid artery to femoral artery by selective catheterization technique under fluoroscopy. A thin CO laser cable of which diameter was less than 0.6mm was advanced from the tip of the angioscope catheter. A As-S chalcogenide glass fiber of which diameter was 200micrometers was installed in the laser cable. The laser cable connected to the CO laser device which was developed for medical use. The angioscope catheter and laser cable could be seen by the fluoroscopy. The authors used the angioscope image of the occlusion end and the angiography image to check the direction of ablation hole. The simultaneous use of these images which include quite different kinds of information was extremely useful for the safety guidance of laser angioplasty for total occlusion. The histological specimen from the ablated occlusion showed that the repetitive ablation procedure made a larger lumen than the laser cable diameter.

Paper Details

Date Published: 1 May 1991
PDF: 5 pages
Proc. SPIE 1425, Diagnostic and Therapeutic Cardiovascular Interventions, (1 May 1991); doi: 10.1117/12.44035
Show Author Affiliations
Tsunenori Arai, National Defense Medical College (Japan)
Kyoichi Mizuno, National Defense Medical College (Japan)
Masami Sakurada, National Defense Medical College (Japan)
Akira Miyamoto M.D., National Defense Medical College (Japan)
Koh Arakawa, National Defense Medical College (Japan)
Akira Kurita, National Defense Medical College (Japan)
Akira Suda, National Defense Medical College (Japan)
Makoto Kikuchi, National Defense Medical College (Japan)
Haruo Nakamura, National Defense Medical College (Japan)
Atsushi Utsumi, Mitsubishi Cable Industries, Ltd. (Japan)
Yoshiro Akai, Hamamatsu Photonics K.K. (Japan)
Kiyoshi Takeuchi, Fukuda Denshi Co. Ltd. (Japan)

Published in SPIE Proceedings Vol. 1425:
Diagnostic and Therapeutic Cardiovascular Interventions
George S. Abela M.D., Editor(s)

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