Carotid Artery Stenosis: Prospective Comparison of CT, Three-dimensional Gadolinium-enhanced MR, and Conventional Angiography
| Autor: | Michel Duyme, Abderezak Zouaoui, Claude Marsault, Bruno Randoux, Béatrice Marro, M. Sahel, Fabien Koskas |
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| Rok vydání: | 2001 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test business.industry Vascular disease medicine.medical_treatment Magnetic resonance imaging Image subtraction Carotid endarterectomy Digital subtraction angiography medicine.disease Stenosis Maximum intensity projection Angiography medicine Radiology Nuclear Medicine and imaging Radiology business |
| Zdroj: | Radiology. 220:179-185 |
| ISSN: | 1527-1315 0033-8419 |
| Popis: | PURPOSE: To prospectively compare gadolinium-enhanced magnetic resonance (MR) angiography and computed tomographic (CT) angiography with digital subtraction angiography (DSA) for use in detecting atheromatous stenosis and plaque morphology at the carotid bifurcation. MATERIALS AND METHODS: Forty-four carotid arteries (in 22 patients) were analyzed by using CT angiography, enhanced MR angiography, and DSA. CT and enhanced MR angiograms were reconstructed with maximum intensity projection and multiplanar volume reconstruction. The following four features were analyzed: degree of stenosis on the basis of North American Symptomatic Carotid Endarterectomy Trial criteria, length of stenosis, luminal surface, and presence of ulcers. RESULTS: There was significant correlation between CT angiography, enhanced MR angiography, and DSA for degree and length of stenosis. With enhanced MR angiography and CT angiography, degree of stenosis was underestimated in two of 44 cases. No case of overestimation with CT angiogra... |
| Databáze: | OpenAIRE |
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