颈动脉海绵窦瘘的MRI及MRA征象分析

目的探讨颈动脉海绵窦瘘的MRI特点,以提高对该病的认识及评估治疗的作用。方法回顾分析8例颈动脉海绵窦瘘的临床资料及影像学表现,所有病例均行MRI、MRA、CT及数字减影血管造影（DSA）检查证实,对比分析患者MRI及MRA影像征象。结果患侧眼球突出8例,海绵窦扩张8例,其中1例为双侧海绵窦扩大,眼上静脉扩张7例,岩上、岩下窦扩张1例,岩上窦扩张1例,眼肌增粗1例,脑挫伤3例。结论颈动脉海绵窦瘘的MRI及MRA具有一定特征性,结合临床对该病的诊断和治疗具有重要的作用。且有成像简单、方便、快捷、无创等优点,是首选的检查方法。

Analysis of MR findings of carotid-cavernous sinus fistula

Objective To discuss MR features of carotid-cavernous sinus fistula (CCF),and to strengthen the impression of this disease,so that the accuracy of diagnosis and valuation of therapeutic effect can be improved.Methods Clinical dates and imaging appearances of 8 cases of CCF were analyzed retrospectively. All the cases were performed with MRI,MRA,CT and digital subtraction angiography (DSA). The MRI and MRA appearances were analyzed comparatively. Results 8 patients of CCF all presented with exophthalmos. The MRI and MRA findings included:8 cases appeared enlargement of cavernous sinus,in which 1 case with enlargement of bilateral cavernous sinuses; dilatation of the superior ophthalmic vein in 7 cases; dilatation of both superior and inferior petrosal sinus in 1 case,and superior petrosal sinus in 1 case; thickening of muscular apparatus in 1 case; and contusion of brain in 3 cases. Conclusions The MRI and MRA appearances of CCF have certain characteristics. Evaluation of imaging appearance conjunction with clinical manifestation is important for the diagnosis and therapy of the disease. MRI is the selective examination for its advantage of simplicity,convenience,quickness and non-invasion.