抄録
The purpose of laser angioplasty is the recanalization of obstructed vessels by laser. Laser reactions in the contact irradiation laser angioplasty were evaluated using female rabbit's atherosclerosing aorta made by high cholesterol diet and hard thrombus made in goat by Gore-Tex bypass graft at the carotid artery. The ablating area of atheroma was covered by small thrombus after 1 hour, which changed to fibrin like substance after 48 hours, and healed after 2 weeks since the contact irradiation of argon laser. In the hard thrombus ablation, round hole of about 2mm in diameter was made by YAG laser through contact ceramic tip.
