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ORIGINAL ARTICLE Prediction of Cerebral Hyperperfusion Syndrome After Carotid Stenting: A Cerebral Perfusion Computed Tomography Study Ying-Chi Tseng, MD,* Hui-Ling Hsu, MD,Þ Tsong-Hai Lee, MD,þ I-Chang Hsieh, MD,§ and Chi-Jen Chen, MDÞ to be the result of failure of normal cerebral autoregulation Purpose: The objective of this study was to evaluate the role of cerebral secondary to longstanding decreased perfusion pressure. There- perfusion computed tomography (CT) in predicting cerebral hyperperfu- fore, methods detecting the preoperative hypoperfusion and sion syndrome (CHS) after carotid stenting. other flow-related factors are important for identifying patients Materials and Methods: This study was approved by the in- at risk. Several methods, including single-photon emission 6Y9 10Y13 stitutional review board, and written informed consent was obtained computed tomography (CT), transcranial Doppler, tran- from all patients. Fifty-five consecutive symptomatic patients with scranial color-coded real-time sonography with echo contrast 14 15Y17 greater than or equal to 70% of cervical carotid artery stenosis who agents, and magnetic resonance imaging, have been underwent carotid stenting from March 2001 to December 2003 were shown to be predictive of CHS, but the value of CT perfusion recruited. Age, sex, stenting side, and degree of cervical carotid stenosis in this context has not
Journal of Computer Assisted Tomography – Wolters Kluwer Health
Published: Jul 1, 2009
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