Combined guidance technique using angioscope and fluoroscope images for CO laser angioplasty: in-vivo animal experiment

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

doi:10.1117/12.44035

1 May 1991 Combined guidance technique using angioscope and fluoroscope images for CO laser angioplasty: in-vivo animal experiment

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

Author Affiliations +

Proceedings Volume 1425, Diagnostic and Therapeutic Cardiovascular Interventions; (1991) https://doi.org/10.1117/12.44035
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

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 Chitin^R 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.

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Tsunenori Arai, Kyoichi Mizuno, Masami Sakurada, Akira Miyamoto M.D., Koh Arakawa, Akira Kurita, Akira Suda, Makoto Kikuchi, Haruo Nakamura, Atsushi Utsumi, Yoshiro Akai, and Kiyoshi Takeuchi "Combined guidance technique using angioscope and fluoroscope images for CO laser angioplasty: in-vivo animal experiment", Proc. SPIE 1425, Diagnostic and Therapeutic Cardiovascular Interventions, (1 May 1991); https://doi.org/10.1117/12.44035

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