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.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords