Magnetic Resonance Imaging (MRI) in Patients With Pacemakers and Implanted Cardioverter Defibrillators

Enrolling by invitation · Not applicable

Conditions studied: Device:MRI

In brief

Ferromagnetic Implants such as permanent pacemakers (PPM's) and Implantable Cardioverter Defibrillators (ICD's) have traditionally been accepted as contraindications to Magnetic Resonance Imaging (MRI) due to safety concerns. Over the past several years, MRI safety has been established in patients with pacemakers or ICD's but only in patients in whom strict vetting procedures were implemented. These vetting procedures were initially developed to eliminate devices, leads and device/lead circumstances thought to carry increased risk. Over recent years however, objective scientific evidence has failed to support this concern raising the question as to whether or not these vetting procedures are necessary. Investigators hypothesize that in view of the existing objective scientific data, evolution of device technology and the fact that the investigators have scanned more than 2,000 devices safely (RPN03-08-11-12 and 00051707) ICD's and pacemakers and device circumstances previously excluded from MRI protocols can be safely scanned without prior vetting. This is a prospective, non randomized, cohort study. Seventeen Hundred participants with an implanted ICD or pacemaker and a clinical need for MRI will be included in the study. Unlike previous studies where strict vetting procedures were implemented pre-procedure, All patients with a pacemaker or ICD and clinical need for an MRI will be eligible for inclusion in the study provided participants meet standard MRI inclusion/exclusion safety criteria.

Key facts

Study ID
NCT02888353
Run by
Johns Hopkins University
People needed
4500
Starts
2015-12-01
Expected to finish
2027-02-01
Last updated by the study team
2025-12-15

Who can join

Age: 9 and older, up to 100. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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