Computed tomography angiography of the carotid and cerebral circulation.

As a result of the development of multidetector row computed tomography (CT) technology, multidetector CT angiography is rapidly becoming the preferred examination for the initial evaluation of an increasing number of clinical neurovascular applications such as carotid artery steno-occlusive disease, acute ischemic and hemorrhagic stroke, subarachnoid hemorrhage, and cerebral vasospasm. This article reviews the most recent literature on these topics, provides the reader with useful clinical tips for performing and interpreting these increasingly complex diagnostic examinations, presents illustrative cases, and looks at future developments in this vibrant area of neuroradiology research.