Mri-Guided Approach to Localize and Ablate Gaps in Repeated Atrial Fibrillation Ablation Procedure: A Pilot Study

EHRA/HRS/APHRS/SOLAECE expert consensus on atrial cardiomyopathies: definition, characterization, and clinical implication

“…426 Other studies have shown a concordance between scar around the PVs and low-voltage regions on invasive electroanatomic mapping (EAM). 427,428 Isolation of PVs at repeat procedures could be achieved guided by the imported MR image to identify the gaps. 427,428 However, other studies found no association between CMR scar gaps and mapped PV reconnection sites.…”

“…427,428 Isolation of PVs at repeat procedures could be achieved guided by the imported MR image to identify the gaps. 427,428 However, other studies found no association between CMR scar gaps and mapped PV reconnection sites. A study in 50 paroxysmal AF patients undergoing either wide area or ostial ablation found that the proportion of patients in whom CMR could correctly identify the distribution of ablation lesions varied from as low as 28% to 54% depending on the technique used.…”

EHRA/HRS/APHRS/SOLAECE expert consensus on Atrial cardiomyopathies: Definition, characterisation, and clinical implication

“…Another study showed a correlation between measured contact force at the time of ablation, and the extent of CMR determined scar development [426]. Other studies have shown a concordance between scar around the PVs and low‐voltage regions on invasive electroanatomic mapping (EAM) [427,428]. Isolation of PVs at repeat procedures could be achieved guided by the imported MR image to identify the gaps [427,428].…”

“…Other studies have shown a concordance between scar around the PVs and low‐voltage regions on invasive electroanatomic mapping (EAM) [427,428]. Isolation of PVs at repeat procedures could be achieved guided by the imported MR image to identify the gaps [427,428]. However, other studies found no association between CMR scar gaps and mapped PV reconnection sites.…”