MDCT in the diagnostic algorithm in patients with symptomatic atrial fibrillation

Figure 1 The blue 3D anatomical shell of the left atrium and the pulmonary veins, as acquired by pre-procedural computed tomography, is merged with the grey anatomical shell that was constructed with electro-anatomical mapping during the procedure (CARTO merge). Note the red ablation tags which mark the circumferential ablation lesions around the pulmonary vein ostia.

Figure 2 Variants of the left atrium and pulmonary vein-anatomy.

Figure 3 Axial multidetector computed tomography image of the area around a pulmonary vein stenosis (*) into the left inferior pulmonary vein in a 66-year-old male patient with dyspnea and chest discomfort 3 mo after pulmonary vein ablation. LA: Left atrium.