PDF(Pubmed)
Abstract：
Magnetic resonance imaging (MRI) of the brain has been implemented to evaluate multiple intracranial pathologies. Non-contrast T2-weighted images are a routinely acquired sequence in almost all neuroimaging protocols. It is not uncommon to encounter various cerebrovascular lesions incidentally on brain imaging. Neuroradiologists should evaluate the routine T2-weighted images for incidental cerebrovascular lesions, irrespective of the primary indication of the study. Vascular structures typically demonstrate a low signal flow-void on the T2-weighted images. In our experience, large cerebrovascular abnormalities are easily visible to a typical neuroradiologist. In this article, we present the spectrum of the characteristic imaging appearance of various intracranial cerebrovascular lesions on routine non-contrast T2-weighted MRI. These include aneurysm, arteriovenous malformation, arterial occlusion, capillary telangiectasia, cavernous malformation, dural arteriovenous fistula, moyamoya, proliferative angiopathy, and vein of Galen malformation.
摘要：
已对大脑进行磁共振成像（MRI）以评估多种颅内病理。非对比T2加权图像是几乎所有神经成像协议中常规采集的序列。在脑成像上偶然遇到各种脑血管病变并不少见。神经放射科医师应评估常规T2加权图像的偶发性脑血管病变，无论研究的主要指征如何。血管结构通常在T2加权图像上表现出低信号流量空隙。根据我们的经验,对于典型的神经放射学家来说，大的脑血管异常是很容易看到的。在这篇文章中,我们介绍了常规非对比T2加权MRI上各种颅内脑血管病变的特征性影像学表现.这些包括动脉瘤，动静脉畸形,动脉闭塞,毛细血管扩张症,海绵状畸形,硬脑膜动静脉瘘,moyamoya,增生性血管病,和Galen畸形的静脉.
