PT - JOURNAL ARTICLE AU - Lin, C.-J. AU - Blanc, R. AU - Clarençon, F. AU - Piotin, M. AU - Spelle, L. AU - Guillermic, J. AU - Moret, J. TI - Overlying Fluoroscopy and Preacquired CT Angiography for Road-Mapping in Cerebral Angiography AID - 10.3174/ajnr.A1757 DP - 2010 Mar 01 TA - American Journal of Neuroradiology PG - 494--495 VI - 31 IP - 3 4099 - http://www.ajnr.org/content/31/3/494.short 4100 - http://www.ajnr.org/content/31/3/494.full SO - Am. J. Neuroradiol.2010 Mar 01; 31 AB - SUMMARY: We describe our 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. APanteroposteriorCTACT angiography3DRA3D rotation angiographyMIPmaximum intensity projection.