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RT Journal Article
SR Electronic
T1 Cerebral Hemodynamic Benefits after Contralateral Carotid Artery Stenting in Patients with Internal Carotid Artery Occlusion
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 616
OP 621
DO 10.3174/ajnr.A3250
VO 34
IS 3
A1 Oka, F.
A1 Ishihara, H.
A1 Kato, S.
A1 Higashi, M.
A1 Suzuki, M.
YR 2013
UL http://www.ajnr.org/content/34/3/616.abstract
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 (&lt;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. CAScarotid artery stentingCEAcarotid endarterectomyCVRcerebrovascular reactivity123I-IMPiodine 123 N-isopropyl-p-iodoamphetaminePaCO2,partial pressure of carbon dioxide