牵牛花综合征的超声诊断

目的探讨超声检查对牵牛花综合征的诊断及鉴别诊断价值，并与其他常用影像学方法进行比较。方法对6例牵牛花综合征的超声等影像学资料进行回顾性分析。结果A／B超检查示玻璃体腔无回声区向后极部延伸至视乳头处并突向肌锥底部，玻璃体腔后部呈倒置的瓶颈状回声图像，可见视网膜脱离带状回声；A超显示玻璃体腔与瓶颈部一致的无回声区均为平静的基线。结论超声检查在牵牛花综合征的诊断及鉴别诊断中具有传统眼底检查所不具有的整体性，其安全性明显优于其他影像学方法，是正确诊断牵牛花综合征的十分有参考价值的影像学手段。

Image findings of morning glory syndrome

Objective To evaluate the significance of ultrasonography in diagnosis and differentiation of morning glory syndrome. Methods Ultrasonography,CT and fundus fluorescein angiography(FFA) features were retrospectively analyzed in 6 cases of morning glory syndrome.Results Ultrasonography, CT and FFA characters of morning glory syndrome were as follow: on the B-type ultrasonogram, the dark area of vitreous cavity extended to the posterior pole and optic papilla, projecting to the basal part of muscle cones, thus the posterior part of vitreous cavity looked like a converted bottleneck. Sometimes the light ribbon of retinal detachment can also be seen. On the A-type ultrasonogram, both vitreous cavity and bottleneck showed no ultrasonic echo and acted as an equable baseline without any evident wave crest. The attachment spot of optic nerve of eye turned thin and vitreous body protruded to the posterior wall of eyeball with spherical shape on CT imaging. In the earlier period of FFA, hypofluorescence appeared on the optic disc; then ,the abnormal arteriae and vein around the optic papilla were diplayed clearly; In the later period, optic discs were dyed with fluorescein. Conclusions Ultrasonography, CT and FFA showed imageological features of morning glory syndrome from different aspects, which was helpful for differentiating similar diseases such as optic disc coloboma. Especially, ultrasonography was considered as a more safe and reliable imageological method than other imageological methods in precisely diagnosing and differentiating morning glory syndrome and superior to the traditional fundus check which gives no integrity.