Frequency, Type and Cause of Artifacts in Swept-Source and Cirrus HD Optical Coherence Tomography in Cases of Glaucoma and Suspected Glaucoma
Frequency, Type and Cause of Artifacts in Swept-Source and Cirrus HD Optical Coherence Tomography in Cases of Glaucoma and Suspected Glaucoma
复制标题
DOI：
10.3109/02713683.2015.1075219
复制
发表时间：
2016-07-01
影响因子：
2
通讯作者：
Kim, Chan Yun
中科院分区：
文献类型：
--
作者：
Lee, Sang Yeop;Kwon, Hee Jung;Kim, Chan Yun
目的：为评价和比较同一患者在同一天使用扫频光源光学相干断层扫描（SS OCT）和Cirrus HD OCT时出现伪影的频率、类型和原因，材料和方法：对72例患者的左眼OCT结果，比较两种OCT的视盘面积和黄斑面积数据，每次扫描检查最终报告和源数据。为了比较两种类型的OCT，由于最终OCT报告格式的差异，仅使用源图像数据。结果：两组在任何区域的伪影频率均无显著差异（椎间盘面积：SS OCT的35.9%，Cirrus OCT的42.2%，p = 0.523;黄斑面积：SS OCT的24.2%，Cirrus OCT的22.7%，p = 1.00）。两种OCT之间伪影比较的总体结果也显示无显著差异。边界错误识别是观察到的最常见的伪影类型，眼部病理学是两种OCT中伪影的最常见原因。在眼部病变中，视网膜前膜（ERM）是OCT伪影产生的最常见原因，在两种类型的OCTs.Conclusions：有没有显着差异的频率，类型和伪影之间的SS OCT和Cirrus HD OCT的原因。OCT伪影可以影响OCT结果的解释。特别是，视盘周围的ERM可能导致OCT伪影，在青光眼诊断或使用OCT进行患者随访期间应予以考虑。
Purpose: To evaluate and compare the frequency, type and cause of imaging artifacts incurred when using swept-source optical coherence tomography (SS OCT) and Cirrus HD OCT in the same patients on the same day.Materials and methods: From left eye OCT results of 72 patients, disc area and macular area data could be compared between the two types of OCT. For each scan, the final printout report and source data were examined. For comparison between the two types of OCT, only source image data were used because of differences in the final printout report format.Results: There were no significant differences in the artifact frequencies between the two groups in either area (disc area: 35.9% of SS OCT, 42.2% of Cirrus OCT, p = 0.523; Macular area: 24.2% of SS OCT, 22.7% of Cirrus OCT, p = 1.00). The overall results of artifact comparison between the two types of OCTs also showed no significant differences. Boundary misidentification was the most common type of artifact observed, and ocular pathology was the most common cause of artifact in both types of OCTs. Among ocular pathologies, the epiretinal membrane (ERM) was the most common cause of OCT artifact production in both types of OCTs.Conclusions: There was no significant difference in the frequency, type and cause of artifacts between SS OCT and Cirrus HD OCT. Artifacts in OCT can influence the interpretation of OCT results. In particular, ERM around the optic disc could contribute to OCT artifacts and should be considered in glaucoma diagnosis or during patient follow-up using OCT.