激光辐照下皮肤组织光热响应有限元分析

来源 :光学学报 | 被引量 : 0次 | 上传用户：yangyp88

【摘要】

：

为了更好地选择临床激光医疗曝光参量,采用有限元数值计算方法,模拟了脉冲激光与连续激光对人皮肤组织的光热作用及导致的温度变化效应,比较了两者的不同,得到了热响应时间及

【作者】

：

丁海峰黄梅珍童雅星李振庆谢树森龚玮

【机构】

：

上海交通大学物理系光学工程研究所,福建师范大学医学光电科学与技术教育部重点实验室

【出处】

：

光学学报

【发表日期】

：

2004年期

【关键词】

：

生物光学辐射曝光剂量有限元方法热弛豫时间评价函数

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为了更好地选择临床激光医疗曝光参量,采用有限元数值计算方法,模拟了脉冲激光与连续激光对人皮肤组织的光热作用及导致的温度变化效应,比较了两者的不同,得到了热响应时间及热弛豫时间与组织深度的关系,即组织越深(0～60 μm),其热响应时间(0～4 ms)与热弛豫时间(0.4～12.1 ms)越长;分析了激光脉宽长短对组织升温的影响;建立了评价脉冲间热损失的评价函数δ,并以此对脉冲间隔的选取作了探讨.

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激光辐照下皮肤组织光热响应有限元分析

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