Key result
CMR with 3D-TWILITE and 3D-LGE visualizes PVAI lesions in 100% of patients immediately post-ablation.
Why the study?
Fluoroscopy and electroanatomic mapping cannot accurately determine the location and size of ablation lesions during PVAI, which can result in incomplete lesions and AF recurrence.
Can cardiac magnetic resonance immediately after radiofrequency catheter ablation visualize pulmonary vein antrum isolation lesions in patients with paroxysmal atrial fibrillation?
Population
10 patients receiving RFCA for paroxysmal AF
Comparison
CMR before (<1 week) vs after (<1 h) PVAI
Design
Prospective observational study
Follow-up
<1 h
Authors
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Supports feasibility of immediate post-ablation CMR lesion visualization; hypothesis-generating for clinical adoption pending larger prospective studies.
Observational (n=10)
Can cardiac magnetic resonance immediately after radiofrequency catheter ablation visualize pulmonary vein antrum isolation lesions in patients with paroxysmal atrial fibrillation?
Cardiac magnetic resonance using 3D-TWILITE and 3D-LGE sequences can successfully visualize atrial lesions immediately after radiofrequency catheter ablation for atrial fibrillation, even without contrast agents.
Guglielmo et al. (2023) conducted an observational in Paroxysmal atrial fibrillation (n=10). Cardiac magnetic resonance (CMR) imaging was evaluated on Visualization of pulmonary vein antrum isolation lesions (PVAI-L). Cardiac magnetic resonance using 3D-TWILITE and 3D-LGE successfully visualized pulmonary vein antrum isolation lesions in 100% of patients immediately after radiofrequency catheter ablation.
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