Laser ablation of atherosclerotic blood vessel tissue under various irradiation conditions

A quantitative analysis of the destruction of normal wall and atherosclerotic plaque areas of blood vessels by laser radiation is presented. Threshold values of laser radiant exposure were measured experimentally in vitro, along with the ablation efficiency for various laser wavelengths and irradiat...

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Bibliographic Details
Published in:IEEE transactions on biomedical engineering 1989-12, Vol.36 (12), p.1188-1194
Main Authors: Esenaliev, R.O., Oraevsky, A.A., Letokhov, V.S.
Format: Article
Language:English
Subjects:
560400 - Other Environmental Pollutant Effects
ANIMALS
AORTA
Aorta, Thoracic - radiation effects
Aorta, Thoracic - surgery
ARTERIES
ARTERIOSCLEROSIS
Arteriosclerosis - surgery
Biological and medical sciences
BIOLOGICAL EFFECTS
BLOOD VESSELS
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
DISEASES
ELECTROMAGNETIC RADIATION
Humans
In vitro
Laser ablation
LASER RADIATION
Laser Therapy
LASERS
Light
MAMMALS
MAN
Medical sciences
MEDICINE
NEODYMIUM LASERS
OPTICAL PROPERTIES
Optical pulses
Optics and Photonics
ORGANS
PHYSICAL PROPERTIES
PRIMATES
RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT
RADIATIONS
Scattering, Radiation
SENSITIVITY
SOLID STATE LASERS
SURGERY
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
VASCULAR DISEASES
Vascular surgery: aorta, extremities, vena cava. Surgery of the lymphatic vessels
VERTEBRATES
Wavelength measurement
WAVELENGTHS
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Summary:A quantitative analysis of the destruction of normal wall and atherosclerotic plaque areas of blood vessels by laser radiation is presented. Threshold values of laser radiant exposure were measured experimentally in vitro, along with the ablation efficiency for various laser wavelengths and irradiation conditions. Correlations were found between the ablation efficiency and fluence thresholds on the one hand and the optical properties of the blood vessel tissues on the other. Fibrous plaque was demonstrated to be selectively destroyed by the second-harmonic output from a pulsed Nd:YAG laser at lambda =532 nm.< >
ISSN:0018-9294
1558-2531
DOI:10.1109/10.42113