正常人涡静脉壶腹的吲哚菁绿造影观察

Observation of Vortex Ampullae of indocyanine green angiography in normal eyes

目的 观察正常人涡静脉壶腹及其所属收集静脉的形态特征。方法 对５０例正常人行常规吲哚菁绿眼底血管造影（ＩＣＧＡ）检查。结果 （ｌ）涡静脉壶腹分为无壶腹、柱状、类圆形及不规则４种类型；无壶腹占６．４１％，其中象限完全无壶腹者占象限的４．７５％，主要出现在颞上象限；柱状壶腹占６２．０８％；类圆形壶腹占２７．６４％；不规则形壶腹占３．８７％。（２）收集静脉主干直接注入壶腹，每个壶腹所属收集静脉主干２～１０支，平均３．８８支。（３）壶腹面积以颞下象限高于其他象限，其他象限之间无差异；颞侧象限壶腹面积大于鼻侧象限。结论 正常人吲哚菁绿眼底血管造影检查显示脉络膜静脉引流有一定的形态特征，此形态可为临床诊断提供参考依据。

Objective To observe the features of vortex ampulla and its collecting veins in normal eyes. Methods Indocyanine green angiography(ICGA ) was performed in each of fifty consecutive normal eyes. Results Vortex ampullae were classified into four types: coloboma of ampulla, column-like, round-like and irregular. Their percentage was 6. 41 %, 62. 08%, 27.64% and 3.87% respectively. The percentage of coloboma of ampulla in one quadrant was 4.75% which was mainly appeared in supratemporal quadrant. The larger collecting veins was directly drained into the ampullae and each ampulla had 2 to 10(mean 3. 88 ) of the larger collecting veins. The total area of ampulla in infratemporal quadrant was statistical larger than in other quadrants. Other quadrants was no difference present each other. The total area of ampulla in temperal quadrant was statistically larger than in nasal. Conclusion The features of choroidal venous drainage present in ICGA can offer consulted bases for clinical diagnosis.