磁共振检查对基底动脉血栓形成患者的诊断价值

目的了解磁共振检查对基底动脉血栓形成患者的诊断价值。方法17例经证实为基底动脉血栓形成的患者于发病后48h时内接受磁共振T2加权成像、磁共振血管成像、弥散加权成像检查。结果所有患者都在磁共振血管成像上可见基底动脉血流信号消失和一侧或双侧椎动脉血流信号消失；弥散加权成像可见后循环区域不同形态散在分布的多发梗死灶；T2 成像可发现基底动脉内血栓形成。结论磁共振血管成像检查对颅内血管闭塞有较高的敏感性，弥散加权成像对后循环供血区域梗死灶的诊断能力优于传统影像学检查。

The significance of magnetic resonance imaging for basilar artery thrombosis

Objective To evaluate the significance of magnetic resonance imaging(MRI) methods, including diffusion weighted imaging (DWI) and magnetic resonance angiography(MRA), for the early management on patients with basilar artery thrombosis. Methods In 17 patients with thrombosis of the basilar artery, MRI was performed, including T2-weighted, MRA and DWI sequences in the short-term phase (<48 hours). Results The MRA showed basilar artery occlusion in all cases and the DWI revealed different patterns of ischemic lesions. Most patients showed multiple and dispersive lesions within the posterior circulation territory. Thrombi can be identified in basilar arteries and vertebral arteries by T2 weighted imaging. Conclusions DWI and MRA are sensitive indicators of acute ischemic brainstem deficits caused by basilar thrombosis.