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Overlying Fluoroscopy and Preacquired CT Angiography for Road-Mapping in Cerebral Angiography
American Journal of Neuroradiology, 11/02/09
Lin CJ et al. – The authors describe the preliminary experience using a road–mapping procedure that involves combining preacquired CTA with real–time fluoroscopy. This maneuver facilitates navigation in supra–aortic vessels from the arch to skull base levels. It requires less contrast than is used for traditional road–mapping while potentially reducing the hazard of thromboembolic events associated with direct catheterization. The accuracy of registration between the 2 volume datasets seems satisfactory for clinical practice.
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