超声生物显微镜和房角镜判断窄房角结果一致性分析

Comparison of ultrasound biomicroscopy and gonioscopy for detection of narrow anterior chamber angles on primary angle-closure glaucoma

目的评价超声生物显微镜（UBM）和裂隙灯显微房角镜（房角镜）对原发性闭角型青光眼房角检查结果的一致性。方法采用双盲法随机对一组原发性闭角型青光眼患者的前房角分别进行UBM和房角镜检查，收集房角镜下Scheie分级为NⅢ和NⅣ的患眼共102只眼（55例），将其房角镜检查结果与UBM检查结果进行等级相关统计学分析，并建立UBM和房角镜检查结果的判别分析。结果两者的检查结果在上方、鼻侧、下方及颞侧四个方位的检查结果中，鼻侧检查结果的一致性最好（rs=0．694，P〈0．01），其次为上方（rs=0．545，P〈0．01），颞俱II（rs=0．426，P〈0．01），下方的检查结果一致隆最差（rs=0．357，P〈0．01）。建立房角镜与UBM两者的判别分析结果显示，鼻侧、上方、颞侧及下方的回代判别总判别符合率分别为86．3％、81．4％、74．5％及52．9％，交互验证符合率分别86．3％、81．4％、74．5％及52．9％。结论在窄房角的情况下，UBM和房角镜检查的结果在不同方位一致性程度不同。

Objective To assess the consistency of results between ultrasound biomcrioscopy （UBM） and gonioscopy for narrow angle on primary angle-closure glaucoma. Methods UBM and gonioscopy were applied to exam anterior chamber angle on primary angle-closure glaucoma by random- ized double-blind method. 102 eyes （55 cases） with Scheie classification NIII and NIV, were collected and compared the results of UBM. The data were analyzed by Spearman correlation test and discrirninant analysis. Results The results of UBM and gonioscopy on narrow anterior chamber angel were well consistency with nasal （rs=0.694, P 〈0.01）, followed by the superior （rs=0.545, P 〈0.01）, temporal （rs=0.426, P 〈0.01）, respectively, but consistency were not good with inferior （rs=0.357, P 〈0.01）, gonioseopy and UBM discriminant analysis showed that nasal, superior, temporal and inferior the generation of discriminant total different compliance rates were 86.3%, 81.4%, 74.5% and 52.9%, consistent with validation were 86.3%, 81.4%, 74.5% and 52.9%. Conclusions The consistency of results between UBM and gonioscopy for narrow anterior chamber angles are different in different direction.