Related Experiment Video
Updated: May 9, 2026

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
Published on: June 3, 2018
Frame Overlap Technique: Improving Coronary Ostial Visualization in Latest Generation Supra-Annular Self-Expandable
Tetsuro Shimura1, Masanori Yamamoto2, Hitoshi Matsuo1
1Department of Cardiovascular Medicine, Gifu Heart Center, Gifu, Japan.
Image:
This clinical vignette introduces the frame overlap technique (FOT), which uses 2 large stent frames (LSFs) of the Evolut FX+ (Medtronic) valve to facilitate coronary ostial visualization after transcatheter aortic valve implantation (TAVI).
Case Summary:
An 82-year-old woman with severe aortic stenosis and coronary artery disease underwent successful TAVI with Evolut FX+. The FOT clarified the spatial relationship between the left coronary ostium and the LSF, enabling selective coronary cannulation.
Take-Home Messages:
The FOT provides a quick, angiography-guided method to evaluate coronary access after Evolut FX+ implantation, which is particularly valuable when rapid access is required in patients with coronary artery disease.
Related Concept Videos
Cardiac Catheterization II: Right Heart Catheterization
Cardiac Catheterization III: Left Heart Catheterization
Aortic Regurgitation I: Introduction
Aortic Regurgitation III: Medical Management

