Noninvasive evaluation of intracranial vessel wall lesions using high-resolution three-dimensional magnetic resonance vessel wall imaging

我们尝试使用T1加权三维血管壁成像（3D-VWI）技术来评估颅内动脉壁病变。在大脑中动脉（MCA）区域的急性非心源性卒中患者中，在所有患者中均观察到MCA壁增厚，提示动脉粥样硬化斑块。此外，斑块的信号强度显着增加，在同侧大脑中动脉和动脉粥样硬化血栓性梗死患者。急性椎基底动脉夹层患者的特征性表现，如管腔狭窄，动脉瘤样扩张，和壁内血肿的3D-VWI与传统的成像技术相比，很容易描绘。3D-VWI技术可以直接显示缺血性脑卒中和夹层患者的颅内动脉壁病变，特别是在急性期，可以帮助诊断这些疾病。

We attempted to evaluate intracranial arterial wall lesions by using a T1-weighted three-dimensional vessel wall imaging (3D-VWI) technique. In patients with acute non-cardioembolic stroke in middle cerebral artery (MCA) territory, wall thickening of the MCA, which is suggestive of atherosclerotic plaques, was observed in all the patients. In addition, signal intensity of the plaque was significantly increased in the ipsilateral MCA and in the patients with atherothrombolic infarction. In patients with acute vertebrobasilar artery dissection, characteristic findings such as luminal stenosis, aneurysmal dilatation, and intramural hematoma were readily depicted on 3D-VWI when compared with conventional imaging techniques. The 3D-VWI technique can directly visualize intracranial arterial wall lesions in patients with ischemic stroke and dissection, and can be helpful to diagnose these disorders particularly in the acute period.