Dynamic CT perfusion to assess the effect of carotid revascularization in chronic cerebral ischemia

AJNR Am J Neuroradiol. 2000 Feb;21(2):421-5.

Abstract

We present the case of a female patient who was studied with dynamic contrast-enhanced CT perfusion before and after carotid revascularization. Before treatment, there was decreased perfusion in the ipsilateral insula, which was shown to be resolved on the scan obtained 1 day after treatment, indicating the technical success of the revascularization. In the ipsilateral basal ganglia, there was delayed contrast agent clearance from the tissue, which was attributed to vasodilation; after revascularization, there remained a subtle stenotic effect. The observed changes in the dynamic CT perfusion study suggest that this technique may be a useful tool in the evaluation of patients with asymmetrical cerebral blood flow.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Brain / blood supply
  • Brain Ischemia / diagnostic imaging
  • Brain Ischemia / surgery*
  • Cerebral Revascularization*
  • Chronic Disease
  • Dominance, Cerebral / physiology
  • Female
  • Humans
  • Postoperative Complications / diagnostic imaging*
  • Regional Blood Flow / physiology
  • Tomography, X-Ray Computed*
  • Treatment Outcome