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Europace 2008 10(Supplement 3):iii14-iii21; doi:10.1093/europace/eun230
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Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2008. For permissions please email: journals.permissions@oxfordjournals.org

This article appears in the following Europace issue: Spotlight Issue: Cardiac Imaging in EP and CRT [View the issue table of contents]

IMAGING IN CATHETER ABLATION FOR AF

Imaging of pulmonary veins during catheter ablation for atrial fibrillation: the role of multi-slice computed tomography

Hiroyuki Niinuma, Richard T. George, Armin Arbab-Zadeh, Joao A.C. Lima and Charles A. Henrikson*

Division of Cardiology, Department of Medicine, Johns Hopkins University, Carnegie 592, 600 N Wolfe Street, Baltimore, MD 21287, USA

Detailed anatomic imaging of the left atrium and related structures prior to ablation of atrial fibrillation (AF) is important for planning the procedure, enabling the use of advanced mapping techniques, and avoiding complications. Multidetector computed tomography (MDCT) allows visualization of the entire left atrium and each pulmonary vein (PV). This method provides precise delineation of anatomical features and dimensions by several types of reconstructed images. Additionally, the MDCT images are used with the electroanatomical mapping system to help guide the safe and effective catheter ablation of AF. MDCT also has been used for the assessment of serial changes in ablated PVs to detect and evaluate PV stenosis. The use of MDCT greatly aids the planning and complication-free execution of AF ablation.

Key Words: Multidetector computed tomography, Atrial fibrillation, Pulmonary vein, Ablation, Anatomy

* Corresponding author. Tel: +1 410 955 2412; fax; +1 410 955 0223.E-mail address: chenriks{at}jhmi.edu


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