ABSTRACT
Computed tomography (CT) imaging has become a useful imaging tool in the electrophysiological management of patients with atrial fibrillation and heart failure. CT imaging provides important information to plan and guide radiofrequency catheter ablation of the pulmonary veins and evaluate potential complications. This chapter discusses the use of CT in the context of pulmonary vein ablation and biventricular pacing. CT can provide detailed information about the anatomy of the atrium, antrum, and pulmonary veins, including the venous ostium diameters. CT images can be integrated to enhance electromagnetic mapping during ablation procedures. The ability to navigate catheters and register ablation lesions using the individual anatomy may improve the result of the procedure. CT can provide information regarding the availability, location, and size of the individual cardiac veins and the options for lead placement. CT images may also be used for electromagnetic navigation of wires into technically challenging venous anatomy.
