ABSTRACT
We performed morphological examination of intact and atherosclerotic aortic regions after laser irradiation with various characteristics (wavelength and energy). Particular attention was given to the type of damages to the vascular wall around craters formed by the laser beam. Combined irradiation with UV and visible lights produced least pronounced damages to surrounding tissues in the aortic wall.
Subject(s)
Aorta/radiation effects , Arteriosclerosis/pathology , Lasers , Muscle, Smooth, Vascular/radiation effects , Aged , Aged, 80 and over , Aorta/pathology , Female , Humans , In Vitro Techniques , Male , Middle Aged , Muscle, Smooth, Vascular/pathologyABSTRACT
The authors relate the results of studies carried out on an outfit model for laser angioplasty designed on the basis of exiplex laser. Optimal conditions for laser introduction into a quartz guide have been found. It is shown that the efficacy of interaction between XeCl-laser and tissue rises as the intensity of radiation increases. The energy of radiation at the guide outlet being 9 mJ, the resources of fiber work remained at a high level (greater than 10(4) impulses) whereas high velocity of tissue evaporation allowed elimination of an area 3 mm3 in volume during 1 minute, with the rate of impulse repetition amounting to 10 Hz.
