TY - JOUR T1 - Dynamic CT Perfusion to Assess the Effect of Carotid Revascularization in Chronic Cerebral Ischemia JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 421 LP - 425 VL - 21 IS - 2 AU - Heidi C. Roberts AU - William P. Dillon AU - Wade S. Smith Y1 - 2000/02/01 UR - http://www.ajnr.org/content/21/2/421.abstract N2 - Summary: 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. ER -