Bottom line: MRI permissible if all conditions are met

Prometra Implantable Infusion Pump

Safety: Conditional

Risks: Thermal, Device malfunction


  • Ensure patient can be deprived of medication infusion during the MRI scan.
  • All medication must be drained out of the pump prior to the exam. The pump must be set to 0 mg/day.
  • Static magnetic field strength up to and including 1.5T.
  • Pump settings must be reset and verified after MRI.


  • Also Known As: PROMETRA II, Implantable infusion pump, Drug infusion pump, Baclofen pump, Intrathecal pump
  • Exposure to the magnetic field without emptying the pump is dangerous as the static magnetic field will cause immediate discharge of all contents.
  • Conditions and comments only apply to Prometra and Prometra II infusion pumps. Medtronic Synchromed Implantable Infusion Pump is a different implantable infusion pump with different specifications.

Bottom Line: All conditions must be met to be MRI permissible.