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Review
. 2011 May 4;4(1):319.
doi: 10.4022/jafib.319. eCollection 2011 May-Jun.

Computed Tomography Imaging in Atrial Fibrillation Ablation

Kavita Sharma  1 , Jeffrey A Brinker  1 , Charles A Henrikson  1
Affiliations
Review

Computed Tomography Imaging in Atrial Fibrillation Ablation

Kavita Sharma et al. J Atr Fibrillation. .

Abstract

Atrial fibrillation (AF) is the most common supraventricular arrhythmia in adults and catheter ablation has increasingly become the therapy of choice for symptomatic, recurrent, drug refractory AF. The purpose of this review is to evaluate the utility of computed tomography (CT) imaging in guiding radiofrequency catheter ablation (RFCA), as well as highlight the additional radiographic and functional anatomic data provided by CT in comparison to alternative radiographic modalities.

Keywords: Abnormal atrial electrograms; Accessory pathways; Atrial fibrillation; Atrial muscle vulnerability; Wolff-Parkinson-White syndrome.

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Figures

Figure 1A
Figure 1A. CT images of the left atrium. Axial image demonstrating the four pulmonary veins, appendage, and surrounding cardiac structures.
Figure 1B
Figure 1B. Coronal image demonstrating left atrial anatomy. LA=Left atrium, LAA=left atrial appendage, LSPV=left superior pulmonary vein, LIPV=left inferior pulmonary vein, RSPV=right superior pulmonary vein, RIPV=right inferior pulmonary vein.
Figure 2A
Figure 2A. Computed tomography image of left atrium (LA) with left atrial appendage (LAA) with corresponding transesophageal echocardiogram images of LA and LAA. CT and TEE images demonstrating contrast filling defect compatible with a thrombus.
Figure 2B
Figure 2B. Right posterior oblique view highlighting the right veins.
Figure 3A
Figure 3A. 3-D reconstructed image of the left atrium using the CartoMerge system. Ablation lesions are denoted by solid red dots. A. Left posterior oblique view highlighting the left pulmonary veins.
Figure 3B
Figure 3B. Right posterior oblique view highlighting the right veins.
See this image and copyright information in PMC

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