B型超声检查对渗出型老年性黄斑变性的诊断价值

Diagnostic Value of B-scan in Exudative Age-related Macular Degeneration

目的:探讨渗出型老年性黄斑变性(Age-related macular degeneration,AMD)的B型超声影象特征。方法:采用NIDEKUS-3300型超声诊断仪,对31例(54只眼)渗出型AMD进行了观察。结果:视网膜色素上皮脱离时,眼内后极部出现膜状弧形回声,光带与眼球壁之间,可见一个梭形透声区;渗出或出血未完全吸收阶段,呈混合性回声;渗出或出血逐渐吸收并为瘢痕组织所替代时,可见实体性小隆起物,强回声,形状似凸透镜或三角形,凸起端指向球后,玻璃体腔面平坦。结论:B型超声在渗出型AMD的诊断、治疗随访观察中具有实用价值。眼科学报1999;15:233-235。

Purpose: To explore the image features of exudative age-related macular degeneration (AMD) with B-scan. Methods: Using NIDEK US-3300 model B-scan to observe 31 patients (54 eyes) with AMD Results: The membranous arc echo was found at the posterior polar and there was a shuttle absence of echo between the echo band and the wall of eyeball in the period of retinal pigment epithelium detachmemt. During the exudation and hemorrhage absorbed not comletely, mixed echo was seen. A small parenchyma body with protrusion was seen with stronger echo in the late phase when the exudation and hemorrhage were replaced by the scar tissues, it was like a convex lens or a triangle and the top pointed to the globe behind, but it was flat towards the vitreous. Conclusion: The B-scan examination is valuable in diagnosis, treatment and follow-up for exudative AMD. Eye Science 1999; 15: 233 - 235.