在玻璃体切除术中验证术前光学相干断层成像检查玻璃体后界面的准确性

摘要

Objective To study the accuracy of optical coherence tomography (OCT) in visualizing post viterous detatchment(PVD).Methods This was a prospective case series based at 150 consecutive cases(150 eyes) listed for vitrectomy surgery that showed media clear enough to enable adequate visualization of the fundus were included.All patients underwent assessment of posterior hyaloid status by OCT imaging of the optic disk.All OCT images were assessed by two eye doctors,and preoperative OCT data were compared with intraoperative observations.Statistical analysis was performed using the Cohen k coefficient to measure the interrater agreement.Results There was 100％ agreement by both eye doctors.Cohen k was 95％ for agreement between preoperative OCT and intraoperative findings.Conclusion OCT imaging can accurately visualize the vitreopapillary interface.It would be helpful for the surgeon to know the presence of PVD and to assess the risk of therapy in future.%目的 探讨光学相干断层成像(OCT)对玻璃体后脱离(PVD)检查的准确性.方法 前瞻性研究.屈光介质清晰,能够充分看到眼底并准备做玻璃体切除手术的连续病例150例(150只眼),应用OCT观察视盘前的玻璃体有无后脱离.所有OCT资料由两位观察者进行评估,术中所见与术前OCT观察结果对比.统计分析应用Cohen Κ系数分析二者的一致性.结果 两位观察者对于OCT的分析结果是100％一致的,术前OCT检查结果与术中所见的相关系数为95％.结论 OCT成像能精确显示玻璃体视盘界面,有助于医生了解有无玻璃体后脱离,从而计划治疗方案与评估治疗风险.