2020 MR Safety for Cardiac Devices: An Update for Radiologists

Area of Science:

• Medical Imaging
• Cardiology

Background:

• Magnetic resonance imaging (MRI) is a vital diagnostic tool offering detailed imaging without ionizing radiation.
• Historically, cardiac devices like pacemakers and implantable cardioverter-defibrillators (ICDs) were absolute contraindications for MRI.
• An increasing number of patients with novel cardiac devices require MRI scans.

Purpose of the Study:

• To review current literature on MR safety in patients with cardiac devices.
• To guide radiologists on safely imaging patients with these devices.
• To share expertise from a tertiary cardiac institute regarding MRI procedures for patients with cardiac devices.

Main Methods:

• Review of recent large studies on MRI safety in patients with MR non-conditional pacemakers and ICDs.
• Analysis of conditions under which MRI can be safely performed.
• Identification and familiarization with novel cardiac devices and their MRI compatibility.

Main Results:

• Recent studies demonstrate that MRI can be safely performed in patients with previously non-conditional pacemakers and ICDs under specific protocols.
• Radiologists can identify patients with cardiac devices eligible for safe MRI.
• Established conditions and protocols facilitate safe MRI procedures for this patient population.

Conclusions:

• Access to MRI is expanding for patients with cardiac devices, overcoming previous contraindications.
• Radiologists must be knowledgeable about cardiac device types and MRI safety protocols.
• Safe MRI for patients with cardiac devices is achievable with proper understanding and adherence to guidelines.