老年性黄斑变性的声像学表现

目的 观察老年性黄斑变性(age-related macular degeneration，AMD)的声像学特征。 方法 对荧光素眼底血管造影(fundus fluorescein angiography，FFA)检查确诊为AMD、眼B型超声检查有阳性发现的35例患者的38只患眼的声像学表现进行分析。 结果26只眼声像图见增厚球壁层间透声裂隙者，FFA检查显示浆液性色素上皮脱离，视网膜下新生血管形成；5只眼伴有小范围“脉络膜凹陷”、4只眼伴有裂隙后缘强回声光带者，FFA检查均表现为较大范围视网膜下新生血管形成；4只眼FFA检查显示脉络膜血肿者，其声像图表现为透声裂隙中出现弱回声光点；8只眼FFA检查显示病变为瘢痕染色者，声像图表现为后极部球壁不均匀增厚，内侧缘回声不均，内回声无规律可循。结论 AMD的声像学特征主要是增厚球壁层间透声裂隙。(中华眼底病杂志,2000,16:228-230)

The ultrasonographic manifestation of age-related macular degeneration

Objective To study the ultrasonographic manifestation character of age related macular degeneration (AMD). Methods The ultrasonographic manifestation of thirty five cases (38 eyes) of AMD diagnosed by fundus fluorescein angiography (FFA) with positive findings of ultrasonic B scan were analysed. Results The ultrasonic appearance of interlamellar transaudient cleft were found in 26 eyes, in which FFA appearance were serous detachment of pigment epithelium and subretinal neovascularization, 5 of them associated with small excavation of choroid, 4 of them associated with strong echo belt at the posterior edge of the interlamellar transaudient cleft in which the FFA appearance was extensive subretinal neovascularization.In another 4 eyes with choroidal hematoma under FFA revealed thin echo light spots in the interlamellar transaudient cleft. There was scar staining in the other 8 eyes in which the ultrasonic appearance showed an unequal thickening of the ocular wall in the posterior pole,unequal echo of interior edge and irregular inner echo. Conclusion The main ultrasonographic manifestation of AMD is the presence of interlamellar transaudient cleft in the thickened ocular wall.