PT  - JOURNAL ARTICLE
AU  - F. Oka
AU  - H. Ishihara
AU  - S. Kato
AU  - M. Higashi
AU  - M. Suzuki
TI  - Cerebral Hemodynamic Benefits after Contralateral Carotid Artery Stenting in Patients with Internal Carotid Artery Occlusion
AID  - 10.3174/ajnr.A3250
DP  - 2012 Aug 23
TA  - American Journal of Neuroradiology
4099  - http://www.ajnr.org/content/early/2012/08/23/ajnr.A3250.short
4100  - http://www.ajnr.org/content/early/2012/08/23/ajnr.A3250.full
AB  - SUMMARY: CEA contralateral to an ICA occlusion is considered a surgical risk, and CAS may be an alternative for these patients. Our goal was to examine whether CAS improves cerebral hemodynamics on the treated side and on the side of the ICA occlusion, on the basis of measurement of CBF and CVR by using SPECT. The subjects were 8 patients who underwent contralateral CAS. Resting CBF and CVR to acetazolamide were measured by using 123I-IMP SPECT before and chronically (3–6 months) after CAS. Resting CBF was also measured immediately (<2 hours) after CAS by using 123I-IMP SPECT. There were no significant differences in resting CBF in both hemispheres immediately after CAS. However, resting CBF and CVR both significantly increased in the chronic period in both hemispheres. Contralateral CAS in patients with ICA occlusion resulted in cerebral hemodynamic improvement on the treated side and on the side of ICA occlusion. Abbreviations CAScarotid artery stentingCEAcarotid endarterectomyCVRcerebrovascular reactivity123I-IMPiodine 123 N-isopropyl-p-iodoamphetaminePaCO2,partial pressure of carbon dioxide