ECG triggered MRI-guided navigation for cardiac interventions
Samset E, Kacher D, Jolesz F, Reynolds G, Aksit P, Epstein L
Brigham and Women's Hospital, University of Oslo
The purpose of this study was to enable concomitant navigation on 3D cardiac cine loops as well as real-time imaging using ECG triggering for accurate temporal registration and synchronization. A navigation system was developed to be able to visualize ECG-gated MRI volume cine loops in three orthogonal cross sections as well as using a volume rendering engine. At the same time real-time images can be displayed in the 3D view and annotated with tracked devices such as catheters. The real-time 2D images are spatially and temporarily registered with the 3D roadmap.