The value of phase-contrast magnetic resonance angiography of the circle of Willis in predicting cerebral ischemia-hypoxia (shunt need) during carotid endarterectomy
| Autor: | Patrick Bagan, J. Salama, Azorin J, J L Dumas |
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| Rok vydání: | 2005 |
| Předmět: |
Male
medicine.medical_treatment Ischemia Collateral Circulation Contrast Media Neurological examination Carotid endarterectomy Magnetic resonance angiography Pathology and Forensic Medicine Arteriovenous Shunt Surgical Imaging Three-Dimensional Risk Factors medicine.artery Humans Medicine Carotid Stenosis Radiology Nuclear Medicine and imaging Cerebral perfusion pressure Intraoperative Complications Aged Aged 80 and over Endarterectomy Carotid medicine.diagnostic_test business.industry Middle Aged medicine.disease Constriction Blood pressure Cerebrovascular Circulation Anesthesia Hypoxia-Ischemia Brain Cerebral ischemia/hypoxia Circle of Willis Female Surgery Anatomy business Magnetic Resonance Angiography |
| Zdroj: | Surgical and Radiologic Anatomy. 27:544-547 |
| ISSN: | 1279-8517 0930-1038 |
| DOI: | 10.1007/s00276-005-0032-5 |
| Popis: | Background: Cerebral perfusion during carotid cross-clamping depends on collateral function of the circle of Willis. The aim of this study was to determine the value of 3D Phase-Contrast (3D PC) MR angiography in predicting pre-operatively the need of shunting. Methods: 3D PC MR angiography were performed in 121 patients before carotid endarterectomy under locoregional anaesthesia. Based on the MR analysis, the risk of cerebral ischemia–hypoxia during clamping was classified as high, moderate and low. The analysis was then correlated with intraoperative neurological examination. Results: In patients with high risk of cerebral ischemia (n=9), immediate cerebral ischemia developed in all patients within one min of clamping (P |
| Databáze: | OpenAIRE |
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