Is the Medtronic Solara Quad CRT‑P MRI SureScan (model W4TR06) MRI‑conditional and safe for MRI scanning?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: July 7, 2026 • View editorial policy

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.

Ask Question

MRI Safety for Medtronic Solara Quad CRT-P W4TR06

The Medtronic Solara Quad CRT-P MRI SureScan model W4TR06 is MRI-conditional and safe for MRI scanning when performed according to the manufacturer's specifications and established protocols.

Device Classification and Safety Profile

The W4TR06 is part of Medtronic's MRI SureScan product line, which designates it as an MRI-conditional cardiac implantable electronic device (CIED). This means the device has undergone specific modifications to the generator and leads to minimize device damage from heating and electromagnetic interference during MRI scanning 1.

Required Scanning Conditions

For safe MRI scanning with this device, the following conditions must be met:

  • Field strength: Scan at 1.5 Tesla when possible (this is the standard recommendation for MRI-conditional CIEDs) 1
  • Monitored setting: Patient must have cardiac rhythm monitoring during the scan 1
  • Device team access: The device team must be available for troubleshooting rhythm disturbances or device-related concerns 1

Pre-Scan Protocol Requirements

The device team must perform specific pre-scan procedures 1:

  • Device interrogation to evaluate underlying rhythm and screen for recent arrhythmias
  • Verification of stable sensing parameters
  • Programming the device to MRI-compatible mode
  • Assessment for any lead complications (fractured leads, lead extenders) which would contraindicate MRI

Post-Scan Requirements

After MRI completion, mandatory post-scan procedures include 1:

  • Device interrogation to ensure lead integrity
  • Verification of sensing and pacing performance
  • Reprogramming back to pre-scan settings

Note that some newer CIED systems have auto-detection features that automatically trigger safe mode in the MRI environment, but post-MRI interrogation remains essential.

Evidence for Quadripolar CRT Devices

Research specifically evaluating CRT devices with quadripolar left ventricular leads (similar to the Quad designation in your device) demonstrated excellent safety profiles at 1.5T MRI, with no scan-related complications and appropriate sensing/pacing maintained 2. This study showed 100% effectiveness for LV pacing capture thresholds and 98% for LV sensing amplitudes post-MRI.

Critical Safety Caveats

Absolute contraindications that would prevent MRI even with a conditional device:

  • Lead extenders present 1
  • Fractured leads identified 1
  • Recent implantation (ideally wait 6 weeks post-implant, though MRI may be considered earlier if clinical need is high) 1

Relative considerations requiring careful risk-benefit assessment:

  • Abandoned transvenous or epicardial leads (may proceed with informed consent when clinical need is strong) 1

Implementation Algorithm

  1. Verify device model is MRI-conditional (W4TR06 qualifies)
  2. Review chest X-ray for lead extenders, fractured leads, or abandoned leads
  3. Confirm timing ≥6 weeks post-implant (preferred)
  4. Coordinate with device team for pre-scan programming
  5. Ensure monitored setting with ACLS-trained personnel available
  6. Scan at 1.5T following manufacturer specifications
  7. Post-scan interrogation and reprogramming mandatory

This standardized protocol approach has been validated in large multicenter registries showing minimal adverse events when properly followed 1.

References

Related Questions

How long after pacemaker implantation should a patient wait before undergoing a brain MRI?
In a 13‑day‑old infant presenting with fever and poor feeding, what interventions should emergency medical services (EMS) perform?
How should I manage a 10-month-old infant with a rectal temperature of 100.6 °F and two episodes of vomiting?
What are the differential diagnoses for aggressive behavior in a 10-year-old child?
In a 12‑month‑old male with normal growth and exam, which absent developmental milestone (e.g., pointing to a body part, responding to name, stacking two blocks, using a cup, or walking independently) would be most concerning and warrant further investigation?
Is Ehlers-Danlos syndrome considered a rheumatologic condition?
Which ICD‑10 diagnosis code should be used when ordering mycophenolate (mycophenolic acid) for a patient?
What is the likely cause of a clicking sensation in the lumbar spine accompanied by pain, and what is the appropriate management?
What is the initial workup for a 34‑week pregnant patient presenting with shortness of breath, no chest pain, and tachycardia?
What is the normal resting heart rate for a woman at 34 weeks gestation?
Can smoldering diverticulitis appear as uncomplicated diverticulitis on a contrast‑enhanced abdominal computed tomography (CT) scan?

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.