脉络膜厚度与体温日间变化的研究（英文）

Diurnal variation in choroidal thickness and body temperature

目的:通过深度增强成像光断层扫描(EDI-OCT)技术以探究体温如何影响脉络膜厚度。方法:前瞻性研究。通过EDI-OCT检测9∶00~17∶00中心凹(SF-CT),中心凹鼻侧500μm(N-CT)和中心凹颞侧500μm(T-CT)正常人(41例)的脉络膜厚度(CT)。使用非接触式红外测温仪逐时检测体温(BT),以评估CT和BT日间变化的相关性。结果:SF-CT值在9∶00和13∶00(P=0.021),9∶00和14∶00(P=0.012),9∶00和16∶00(P=0.048),及9∶00和17∶00(P=0.002)之间存在显著性差异。N-CT值在8h内(均P>0.05)无显著性变化,9∶00和13∶00(P=0.004)则存在明显差异。结论:CT与BT从9∶00~17∶00之间逐时变化无显著性差异。

AIM ： To investigate how body temperature （BT） affects choroidal thickness （CT） according to measurements taken with enhanced depth imaging optical coherence tomography （EDI-OCT）. METHODS： In this prospective study, the CT of 41 healthy patients was measured hourly from 9：00 to 17：00 at the fovea （ SF-CT）, 500 μ m nasal to the fovea （ N-CT）,and 500 μm temporal to the fovea （T-CT） using EDI- OCT. BT was also measured hourly from 9：00 to 17：00 using a non- contact infrared thermometer. Possible correlations between diurnal variations of CT and BT were evaluated. RESULTS. SF- CT values significantly differed between measurements at 9：00 and 13：00 （P= 0. 021）, 9：00 and 14：00 （P=0.012）, 9：00 and 16：00 （P=0.048）, and 9：00 and 17：00 （P=0.002）. N-CT values also significantly differed between measurements at 9：00 and 13：00 （ P= 0. 004）, though T-CT did not significantly vary during the 8h period （P 〉0.05 for all）. CONCLUSION： CT is not significantly associated with hourly changes in BT from 9：00 to 17：00.