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[摘要]
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。
[Key word]
[Abstract]
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 μm 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.
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