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全视网膜光凝术后DR患者黄斑区与光斑区脉络膜厚度变化 被引量:4
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作者 岳静 张纯辉 +1 位作者 李毅宏 周源源 《国际眼科杂志》 CAS 北大核心 2018年第5期934-936,共3页
目的:探讨糖尿病性视网膜病变(diabetic retinopathy,DR)患者全视网膜光凝术(panretinal photocoagulation,PRP)治疗前后黄斑区与光斑区脉络膜厚度变化。方法:选取我院2015-01/2017-01就诊DR患者40例78眼,行PRP治疗,采用眼底光学相干断... 目的:探讨糖尿病性视网膜病变(diabetic retinopathy,DR)患者全视网膜光凝术(panretinal photocoagulation,PRP)治疗前后黄斑区与光斑区脉络膜厚度变化。方法:选取我院2015-01/2017-01就诊DR患者40例78眼,行PRP治疗,采用眼底光学相干断层扫描技术(optical coherence tomography,OCT)观察患者治疗前后黄斑区与光斑区脉络膜厚度变化。结果:PRP术后1mo黄斑中心凹下脉络膜厚度(subfoveal choroidal thickness,SFCT)、鼻侧脉络膜厚度(nasal choroidal thickness,NCT)、颞侧脉络膜厚度(temporal choroidal thickness,TCT)、上方脉络膜厚度(superior choroidal thickness,SCT)、下方脉络膜厚度(inferior choroidal thickness,ICT)均显著高于术前,差异有统计学意义(t=2.016、2.017、2.001、2.264、2.229,P<0.05);术后3mo时SFCT、NCT、TCT、SCT、ICT与术前比较均显著减低,差异有统计学意义(t=2.048、2.051、2.092、2.010、2.273,P<0.05)。术后光斑区基线水平的脉络膜平均厚度(227.6±44.9μm)显著高于术后1mo脉络膜厚度(207.1±41.6μm),差异有统计学意义(t=2.118,P<0.05);术后3mo脉络膜平均厚度(206.5±41.3μm)显著低于基线水平的脉络膜平均厚度(227.6±44.9μm),差异有统计学意义(t=2.188,P<0.05)。结论:PRP术后短期内可明显增加黄斑区脉络膜厚度,而光斑区脉络膜厚度明显减少,提示术后脉络膜血流情况进行了重新分布。 展开更多
关键词 糖尿病视网膜病变 全视网膜激光光凝 脉络膜厚度
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Experimental Study on Double Resonance Optical Pumping Spectroscopy in a Ladder-Type System of ^(87)Rb Atoms
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作者 yi-hong li Shao-Hua li +3 位作者 Bin-Peng Ynan li-Rong Wang lian-Tuan Xiao Suo-Tang Jia 《Chinese Physics Letters》 SCIE CAS CSCD 2018年第9期33-36,共4页
Double resonance optical pumping spectroscopy has an outstanding advantage of high signal-to-noise ratio, thus having potential applications in precision measurement. With the counter propagated 780nm and 776nm laser ... Double resonance optical pumping spectroscopy has an outstanding advantage of high signal-to-noise ratio, thus having potential applications in precision measurement. With the counter propagated 780nm and 776nm laser beams acting on a rubidium vapor cell, the high resolution spectrum of 5S1/2 - 5P3/2 - 5D5/2 ladder-type transition of ST Rb atoms is obtained by monitoring the population of the 5S1/2 ground state. The dependence of the spectroscopy lineshape on the probe and coupling fields are comprehensively studied in theory and experiment. This research is helpful for measurement of fundamental physical constants by high resolution spectroscopy. 展开更多
关键词 Experimental Study on Double Resonance Optical Pumping Spectroscopy in a Ladder-Type System of Rb Atoms
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