MRI和磁共振静脉血管成像在静脉性脑梗死诊断中的意义

Diagnostic significance of MRI and magnetic resonance venography on venous cerebral infarction

目的探讨MRI及磁共振静脉血管成像(MRV)在静脉性脑梗死诊断中的意义。方法回顾性分析16例静脉性脑梗死患者MRI及MRV图像特征。结果 16例患者MRI平扫可见局限性脑肿胀,病灶分布与动脉供血范围不符,其中9例梗死区内出血,15例于T2WI出现静脉窦等信号、FLAIR呈高信号。16例患者MRV均表现为静脉窦内充盈缺损,其中13例发生于上矢状窦。结论 MRI结合MRV可作为静脉性脑梗死的最佳诊断及随访手段。

Objective To investigate the diagnostic significance of MRI and magnetic resonance venography （MRV） on venous cerebral infarction （VCI）. Methods The image features of MRI and MRV were retrospectively analyzed in 16 patients with VCI. Results MRI plain scan showed that the localized brain swelling was inconsistent with the arterial blood supply in 16 cases; of which the hemorrhage was present in the infarction zone of 9 cases, and the equal signals at T2WI and high signals at FLAIR were existent in the venous sinuses of 15 cases. MRV revealed the filling-defects of the venous sinuses in all cases, of which the filling defects were seen in the superior sagittal sinuses ofl 3 cases. Conclusion MRI plus MRV can act as the excellent measures for the diagnosis and follow-up of VCI.