Vertebrocarotid collateral in extracranial carotid artery occlusions: digital subtraction angiography findings

Oguzkurt L., Kizilkilic O., Tercan F., Turkoz R., Yidirim T.

EUROPEAN JOURNAL OF RADIOLOGY, vol.53, no.2, pp.168-174, 2005 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 2
  • Publication Date: 2005
  • Doi Number: 10.1016/j.ejrad.2004.03.020
  • Title of Journal : EUROPEAN JOURNAL OF RADIOLOGY
  • Page Numbers: pp.168-174

Abstract

The internal and external carotid arteries are usually considered occluded distal to a common carotid artery occlusion but some collateral vessels may provide blood keeping the internal and external carotid arteries patent distal to the occlusion. Most common communication in such a case is diversion of blood from muscular branches of the vertebral artery to occipital branch of the external carotid artery which in turn could maintain blood flow into the internal carotid artery, a condition called carotid steal.