Electroanatomic imaging using magnetic catheter tracking in the diagnosis and treatment of atrial arrhythmias.
Recent data emphasize the importance of structural factors in the pathophysiology of atrial arrhythmias. As a consequence, catheter ablation increasingly has become an anatomically oriented procedure. A recently developed magnetic catheter tracking system provides spatially precise and realistic three-dimensional reconstructions of endocardial geometry. A variety of electrophysiologic data can be superimposed on these reconstructions, including activation sequence, electrogram amplitude and morphologic features, response to pacing maneuvers, and sites of planned or delivered radiofrequency energy ablation. These features enhance the ability to analyze and visualize arrhythmia mechanisms, plan and execute appropriate ablation strategies, and provide new opportunities for physiologic research.
Wilber
D J
DJ
Electrophysiology Laboratories, University of Chicago, Illinois, USA.
Kall
J G
JG
Cooke
P A
PA
D001281:Atrial Fibrillation / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D006328:Cardiac Catheterization; D017115:Catheter Ablation / Q000379:methods*; D004562:Electrocardiography; D006325:Heart Atria / Q000473:pathology* / Q000503:physiopathology; D006329:Heart Conduction System / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D006339:Heart Rate; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods*; D015203:Reproducibility of Results