Overlying Fluoroscopy and Preacquired CT Angiography for Road-Mapping in Cerebral Angiography: Fig 1.
Chung‐Jung Lin, R. Blanc, Frédéric Clarençon, Michel Piotin, L. Spelle, J. Guillermic, J Moret · American Journal of Neuroradiology · 2009
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.