Synopsis of JBS recommendations for magnetic resonance imaging in patients with cardiac implantable electronic devices

Over the last several decades, magnetic resonance (MR) imaging has become the diagnostic modality of choice for several conditions, cardiac and non-cardiac. However, MR uses a static magnetic field, gradient magnetic fields and pulsed radiofrequency energy, all of which may interact with metallic and electronic components within the field. As such, patients with cardiac implantable electronic devices (CIEDs) have traditionally been precluded from MR imaging given the potential harm from mechanical force and torque, heating and tissue damage, unwanted myocardial stimulation or electrical reset. Necessity, therefore, drove researchers to study the safety of MR in CIED recipients in vitro and in vivo, and later in patients. This work, in turn, led device manufacturers to make changes to the design of CIEDs and develop MR conditional systems.1 These changes include reducing ferromagnetic components, changing three-dimensional coil configurations, and adding heat-dissipating filters to the generator and leads. In light...

Source: Heart - January 29, 2024 Category: Cardiology Authors: Zghaib, T., Nazarian, S. Tags: Guideline summary Source Type: research