Yes, the Medtronic Reveal LINQ placed in 2018 is MRI-conditional and can be safely scanned at both 1.5T and 3.0T.
The Medtronic Reveal LINQ is MRI-conditional for both 1.5T and 3.0T field strengths, making it safe for MRI scanning when proper protocols are followed 1.
Device Classification and Safety Profile
The Reveal LINQ is an implantable loop recorder (ILR) that functions purely as a subcutaneous sensing device without pacing or therapeutic capabilities. According to the 2021 Canadian Cardiovascular Society/Canadian Society for Cardiovascular Magnetic Resonance/Canadian Heart Rhythm Society joint guidelines, all currently available Reveal/Reveal LINQ devices from Medtronic are explicitly MRI-conditional at both 1.5T and 3.0T 1.
Practical Scanning Protocol
For your patient with a 2018 Reveal LINQ, follow this straightforward approach:
- Scan at either 1.5T or 3.0T - both field strengths are approved 1
- Download stored data before the MRI scan to preserve any diagnostic arrhythmia recordings 1
- Clear unwanted data after the scan to prevent false arrhythmia detection from MRI-related electromagnetic interference 1
- Standard monitoring and device team access is good practice but no special requirements are necessary (no ACLS supervision, no device reprogramming needed) 1
Important Caveats About Data Integrity
While the device itself is safe in the MRI environment, be aware that:
- The MRI environment may alter or erase stored data 1
- Electromagnetic interference commonly causes artifacts that can be incorrectly diagnosed as arrhythmia events 1
- Real-world experience from a tertiary center showed that only 53.8% of patients had device downloads performed before MRI and 56.5% after, though no adverse events occurred 2
Image Quality Considerations
The LINQ device produces minimal artifact:
- Minor subcutaneous artifact is present on all scans 2
- Intrathoracic artifact occurs in approximately 25-33% of scans 2
- No clinically significant artifact has been observed even when artifact extends into the intrathoracic space 2
Bottom line: Your patient can safely undergo MRI at either 1.5T or 3.0T. Just ensure data is downloaded beforehand and cleared afterward to protect diagnostic information.