%0 Journal Article
%T Power Selection of Laser Transpupillary Thermotherapy<br>激光经瞳热疗的功率选择
%A LI Xiao-xia
%A <br>李小霞
%J 光子学报
%D 2007
%I 
%X The universal power selection methods of laser transpupillary thermotherapy make the eye fundus max temperature change with the irradiation diameter. In order to avoid the resultant thermal damage or lack irradiation in laser transpupillary thermotherapy, the eye fundus layer model is built and solved by two dimensions finite element method. The temperature response of laser induced retina and choroids is analyzed in theory. Under the same diameter condition the max temperature rise is directly proportional to the power and inversely proportional to transmission. So the power of achieving threshold temperature can be calculated from any power, based on which the quantitative relationship of diameter, transmission and threshold temperature is provided. The power calculated from such an equation can maintain the threshold temperature at different diameters.
%K Laser transpupillary thermotherapy
%K Power selection
%K Finite element method
%K Choroidal neovascularization
%K Irradiation diameter
%K Threshold temperature<br>激光热疗
%K 功率选择
%K 有限元法
%K 脉络膜新生血管
%K 光斑直径
%K 阈值温升
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=5F530668865B40BFB911766D2DAC2C9A&yid=A732AF04DDA03BB3&vid=933658645952ED9F&iid=59906B3B2830C2C5&sid=8C9A3015CDCBC3EB&eid=516C537CEEC0FAC3&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=10