脑静脉窦血栓形成患者磁共振成像与磁共振静脉血管成像联合诊断的价值

The value of magnetic resonance imaging combined with magnetic resonance venography in diagnosis of cerebral venous sinus thrombosis

目的探讨脑静脉窦血栓(cerebral venous sinus thrombosis,CVST)形成患者磁共振成像与磁共振静脉血管成像联合诊断的价值。方法选取脑静脉窦血栓患者40例进行分析。诊断过程中,全体患者均接受磁共振(magnetic resonance venography,MR)平扫,数字减影血管造影(digital subtraction angiography,DSA)检查12例,MRV检测6例,增强扫描22例。结果单一横窦受累6例,上矢状窦、乙状窦及横窦受累8例,单一乙状窦受累16例,横窦和上矢状窦联合受累10例。所有患者磁共振成像(magnetic resonance venography,MRI)及磁共振静脉成像(magnetic resonance venography,MRV)均表现出信号改变。22例患者增强扫描显示脑静脉非正常强化,但静脉窦内部血栓未强化。MRV检查6例患者及DSA 12例患者的结果显示其受累静脉窦不明显、狭小、不规则,且出现侧支血管形成现象。结论 MRI与MRV联合诊断对于脑静脉窦血栓形成的诊断具有较好效果。

Objective To investigate the value of the magnetic resonance imaging （MRI） combined with magnetic reso‐nance venography （MRV） in the diagnosis of cerebral venous sinus thrombosis. Methods Patients who were collected from A‐pril 2009 to May 2013 in our hospital were analyzed retrospectively. All of the patients were scanned by MR ,12 of which went on DSA （digital subtraction angiography） ,6 of which were scanned by MRV and 22 of which were received enhanced scan. Re‐sults 6 patients with the thrombosis of single transverse sinus ,and 8 patients with superior sagittal sinus ,transverse sinus and sigmoid sinus involvement was observed;while single sigmoid sinus involvement in 16 and both superior sagittal sinus and transverse sinus in 10 patients.Abnormal venous enhancement was found on contrast enhanced MRI in 22 patients ,but venous sinus thrombosis did not be enhanced. The results of MRV in 6 patients and DSA in 12 patients showed that the cerebral ve‐nous sinus was not obvious ,narrow and irregular. Conclusion The value of the magnetic resonance imaging （MRI） combined with magnetic resonance venography （MRV） in the diagnosis of cerebral venous sinus thrombosis is effective ,should be widely applied to clinical practice.