Imaging of the Intracranial Artery Dissection

Abstract Intracranial dissection is one of the most important cause of vascular stroke either ischemic or hemorrhagic in young and middle-aged patients. The diagnosis of intracranial dissection is clinically significant as it can cause an ischemic stroke or might be responsible of a disabling sub-arachnoid hemorrhage. Computed Tomography Angiography (CTA) of the Willis circle as well as Magnetic Resonance Imaging (MRI) and Digital Subtraction Angiography (DSA) are the best examinations to confirm the diagnosis. We report a retrospective study including 10 patients with an intracranial dissection seen during a period of 02 years from January 2018 to December 2019. The diagnosis of intracranial dissection was confirmed by CT angiography and DSA. The posterior circulation is the most frequent in our series representing 70% of cases and 30% for the anterior circulation. The radiological signs are distributed as follows: occlusion in 03 cases (30%), stenosis in 07 cases (70%), tubular dilatation in 02 cases (20%) and dissecting aneurysm in 03cases (30%). Keywords Intra cranial artery dissection; Subarachnoid hemorrhagic; Stroke; Aneurysm; Transient ischemic attack