Clinical trial Recruiting at 1 site Observational Ages 18 and up

High-resolution MRI imaging for patients with atrial fibrillation before ablation

Official title: High-resolution Contrast-Enhanced MRI of Atrial Fibrillation Patients Prior to FIRM Ablation

Run by Ohio State University · NCT03444337 · Data updated 2026-11-12

This study is testing if detailed MRI scans can help doctors better understand the heart's structure in patients with atrial fibrillation before they undergo a procedure to treat it.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment20 (estimated)
SponsorOhio State University
Academic / other
Locations1 site (Columbus, Ohio)
StatusRecruiting
StartedNovember 3, 2016
Main results expectedDecember 30, 2027
Study endsApril 30, 2028
Registry record updatedSeptember 9, 2026
Trial IDNCT03444337 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with symptomatic paroxysmal or persistent atrial fibrillation scheduled for ablation using FIRM mapping.

Probably not a fit

Patients with left atrial appendage thrombus, those unable to undergo MRI, or those who cannot receive gadolinium contrast will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study involves patients with symptomatic paroxysmal or persistent atrial fibrillation who are undergoing a clinically indicated ablation procedure using FIRM mapping. Participants will receive high-resolution MRI scans with gadolinium-based contrast to create detailed 3D images of the atria before the procedure. The study aims to correlate fibrotic regions in the heart with the sites targeted for ablation based on FIRM mapping. Data will be collected before, during, and after the ablation procedure to enhance understanding of the disease state and improve treatment outcomes.

Why it matters

Potential benefit: If successful, this study could lead to improved targeting of ablation sites, potentially enhancing the effectiveness of atrial fibrillation treatment.

How similar studies have gone: While the approach of using MRI in conjunction with FIRM mapping is innovative, similar studies have shown promise in improving ablation outcomes, indicating potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients with symptomatic paroxysmal or persistent atrial fibrillation undergoing clinically-indicated ablation procedure employing FIRM mapping with pre-operative MRI.
2. Subjects must be at least 18 years of age.

Exclusion Criteria:

1. LAA thrombus present on pre-procedure TEE
2. Unable to undergo MRI imaging
3. Unable to receive gadolinium contrast.

Where it's running

  • Ohio State University
    Columbus, Ohio, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.