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Updated: Jun 19, 2026

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
Published on: June 3, 2018
Overlying fluoroscopy and preacquired CT angiography for road-mapping in cerebral angiography
C-J Lin1, R Blanc, F Clarençon
1Department of Functional and Interventional Neuroradiology, Fondation Rothschild Hospital, Paris, France.
Abstract:
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.
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