严重增殖型糖尿病视网膜病变超声声像图特征及诊断准确性

目的：探讨增殖型糖尿病视网膜病声像图特片以及超声诊断与术中所见的符合率，方法：对增殖型糖尿病视网膜病变患者48例（62只眼）在行玻璃体视网膜手术前3d内行超声检查，并将其超声检查结果与术中所见相比较，通过仔细观察记录各种病理改变的位置，形态，程度，范围，活动度等情况作出判断。结果：超声检查不受屈光间质混浊影响，能清楚显示多种玻璃体视网膜病变，对增殖型糖尿病视网膜各种病理改变－玻璃体积血、玻璃体后脱离，视网膜脱离，玻璃体机化物，玻璃体视网膜粘连和视网膜前膜，机化物的诊断符合率分别为100％，91．1％，96．4％，80．0％和87．9％，结论：增殖型糖尿病视网膜变术前超声检查的临床符合率高，能为眼科医生提供可靠的诊断依据。

Reliability and characteristics of ultrasonography in patients with severe proliferative diabetic retinopathy

Objective To evaluate the percentage of agreement between the ultrasonographic data and the surgical findings,and investigate the characteristics of the ultrasonographic imaging of proliferative diabetic retinopathy.Methods B-scan ultrasonography was performed in 48 patients (62 eyes ) affected by proliferative diabetic retinopathy,before vitreoretinal surgery,by observing and recording the position,shape,range,to evaluate the percentage of agreement between the ultrasonographic data and surgical findings.Results Ultrasonography can show kinds of vitreoretinal changes clearly,and is not affected by the opacity of refractive media.The agreement was quite good for the pathological changes of proliferative diabetic retinopathy.The accurate rates of diagnosis of vitreous hemorrhage,posterior vitreous detachment,retinal detachment,vitreal membranes,vitreoretinal adhesions and preretinal membranes were 100%, 91.9%, 94.9%, 96.4%, 80.0% and 87.9%,respectively.Conclusions B-scan ultrasonography is valuable in proliferative diabetic retinopathy and favorable in the ophthalmic clinic practice.