Imaging of blunt cerebrovascular injuries.

Arterial dissection, pseudoaneurysm, arteriovenous fistula, arterial laceration and occlusion are uncommon complications of blunt trauma. Angiography has been considered the primary method of evaluation to assess for vascular injuries but, due to the low frequency of these lesions, its screening role has been challenged. Non-invasive imaging, particularly CT angiography (CTA), offers definitive advantages and has emerged as a promising diagnostic screening method. Angiography is shifting to a rather therapeutic role and the endovascular management of these lesions is briefly discussed.