摘要
本文应用波长1.06μm 的三种不同脉宽的 Nd:YAG 激光,照射总能量300J,分别经空气、血液、生理盐水三种不同介质照射新鲜人尸主动脉粥样斑块片段,结果显示:激光经血液的作用最强烈,空气次之,经盐水几无反应;对斑块的汽化作用以短脉冲组最彻底,对周围组织损伤程度以连续式激光最为严重,短脉冲组最轻。因而认为短脉冲最为适合于选做血管成形术。
Atherosclerotic plaques of fresh human cadaver in air,blood and saline solutionwere radiated by Nd-YAG laser(1.06μm)with three different pulse duration,at a constant en-ergy level of 300 J respectively.Result revealed that(1)The response of laser is most rapidand severe in the blood and then in the air,there is no response in saline solution within a fewminutes.(2)Short pulse YAG laser vaporizes the atherosclerotic plaque most completely and cau-ses least damage to the adjacent normal vascular tissue,while(3)continuous YAG laser damagethe normal vascular tissue most severely.So,the short pulse YAG laser was considered as theoptional choice for clinical application.
出处
《应用激光》
CSCD
北大核心
1990年第5期235-238,210,共5页
Applied Laser
