Key result
Cardiac magnetic resonance imaging can be performed safely in patients with MRI-conditional cardiac implantable electronic devices when specific protocols are followed to minimize risks and artifacts.
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Physicians can safely perform CMR in patients with MRI-conditional CIEDs by understanding device physics and applying specific protocol modifications to minimize risks and image artifacts.
Magnetic resonance imaging (MRI) is an excellent body imaging modality. One limitation of MRI is that the physical environment may be a risk for patients with implantable metallic devices. In the past, a cardiac implantable electronic device (CIED) was an absolute MRI contraindication. However, since the introduction of MRI-conditional CIED, the indication for MRI examination has progressed significantly. Cardiac magnetic resonance (CMR) examination can also be performed restrictively in patients with MRI-conditional CIED. With the physical MRI environment, the CIED located near the heart can impact especially a CMR examination focused on the heart. Furthermore, in basis of the physical MRI environment, CMR techniques have been designed for the visualization of a continuously beating heart with minimal image artifact. Therefore, physicians should be familiar with prerequisite conditions for a safe CMR, and prepare the CMR protocol to minimize CIED-related artifacts on CMR images.
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Hwang et al. (2017) conducted a review in Patients with Cardiac Implantable Electronic Devices (CIED) needing MRI. Magnetic Resonance Imaging (MRI) was evaluated. Cardiac magnetic resonance imaging can be performed safely in patients with MRI-conditional cardiac implantable electronic devices when specific protocols are followed to minimize risks and artifacts.
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