Dana C. Peters1, Warren J. Manning1,2, Mark E. Josephson1, Jeff Hsing1
Early findings of edema and injury after pulmonary vein isolation (PVI) might be predictive of later outcome. Eleven atrial fibrillation patients were imaged prior to PVI, 1 day after PVI (early), and >30 days after PVI (late), with a LGE and T2W sequences. Scar and edema were characterized. LGE enhancement is less intense at the early time-point vs later LGE enhancement, while early edema and wall thickening are common. More intense edema early after PVI predicts later scar formation, by LGE.