Schneider Miklos, Seres Andras, Borgulya Gabor, Nemeth Janos
Semmelweis University, Department of Ophthalmology, H-1083 Budapest, Tömö u. 25-29, Hungary.
Ophthalmic Surg Lasers Imaging. 2010 Jan-Feb;41(1):54-9. doi: 10.3928/15428877-20091230-10.
To study the incidence of boundary detection errors produced by optical coherence tomography measurements in patients with diabetic retinopathy.
One hundred sixteen eyes with diabetic retinopathy of 64 consecutive patients with diabetes mellitus were included in this retrospective study. The StratusOCT instrument (Carl Zeiss Meditec, Dublin, CA) with the macular thickness map protocol was used for the examinations. After data acquisition, each scan was analyzed using the retinal thickness (single eye) protocol to evaluate whether there was any misdetection of the retinal boundaries.
Boundary detection errors were found in 35.3% of eyes. The majority of artifacts were those caused by hard exudates (41.5%), followed by cystoid macular edema (31.7%) and proliferation (17.0%).
Occurrence of artifacts with optical coherence tomography measurements in cases of diabetic retinopathy is not a rare phenomenon and verification of quantitative measurements is strongly recommended.
研究糖尿病视网膜病变患者光学相干断层扫描测量产生边界检测误差的发生率。
本回顾性研究纳入了64例连续糖尿病患者的116只患有糖尿病视网膜病变的眼睛。使用配备黄斑厚度图协议的StratusOCT仪器（卡尔蔡司医疗技术公司，加利福尼亚州都柏林）进行检查。数据采集后，使用视网膜厚度（单眼）协议对每次扫描进行分析，以评估视网膜边界是否存在任何误检测。
在35.3%的眼睛中发现了边界检测误差。大多数伪像由硬性渗出物引起（41.5%），其次是黄斑囊样水肿（31.7%）和增殖（17.0%）。
在糖尿病视网膜病变病例中，光学相干断层扫描测量出现伪像并非罕见现象，强烈建议对定量测量进行验证。
