Low-field MRI may offer reduced artifacts in patients with implanted metallic devices. In this early comparison, we sought to evaluate the appearance of artifacts seen on cardiac MR at a 0.55T versus 1.5T for common cardiovascular devices, including sternal wires, valves, surgical clips, and cardiac implantable electronic devices (CIEDs). For smaller discrete implants, the artifact profile was reduced at 0.55T, as expected. Whereas, CIED generators contributed significant artifacts at both field strengths, illustrating the complex relationship with material properties, sequence details and field strength. Overall, lower field may offer some advantage for cardiac imaging of patients with common implanted devices.
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