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Spinal Cord Stimulators

Determining MRI Eligibility

Patients with Medtronic neurostimulation systems for chronic pain may be eligible for an MRI scan anywhere on the body or for a head-only scan. Use the tools below to determine MRI eligibility.

Overview of Tools for Determining MRI Eligibility

  SureScan System – Eligible for Anywhere on the Body Scan Not a SureScan System – May Be Eligible for Head-Only Scan
MyStim Patient Programmer
MyStim Patient Programmer Model 97740 or later can be used to access MRI information and activate MRI Mode
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Models earlier than 97740 do not display MRI information or activate MRI Mode; they indicate if stimulation is ON or OFF
MRI Patient Eligibility Form
Patient Eligibility Form Completed by a physician, provides information about the patient's implanted system and MRI eligibility
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Completed by a physician, provides information about the patient's implanted system and MRI eligibility
Patient ID Card
Patient ID Card Provides model # of implanted neurostimulator
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Provides model # of implanted neurostimulator
X-ray
MRI SureScan Can X-ray Header block on neurostimulator has “NMA” radiopaque identifier; braid on the lead identifies that it is a SureScan component. The lead and neurostimulator must be in approved locations to be eligible for a full-body scan.
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Neurostimulators and leads that are not SureScan components have no unique identifiers

Using the MyStim Patient Programmer to Determine MRI Eligibility

MRI SureScan MyStim MRI Mode

The MyStim patient programmer (model 97740 or later) clearly shows MRI eligibility. You can activate MRI Mode at the same time, which turns off stimulation before the scan.

Either you or the patient can operate the patient programmer. Perform the steps before entering the MRI scanner room. If the patient does not know how to display MRI eligibility information with the MyStim programmer, refer to the checklist designed for patients.

mri-patient-checklist Patient Checklist: Before Your MRI

If the eligibility screen indicates one of the eligibility results shown below, confirm that the neurostimulator model number on the screen or form matches one of the model numbers listed in the Neurostimulator Model Numbers section of the MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain. Then refer to the appropriate scan conditions indicated below before proceeding with the MRI scan.

Patient Eligibility Form MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain

MyStim MRI Scan Eligibility Screens

MRI Full Body Eligibility Icon
Symbols Indicating Full-Body Scan Eligibility

Symbols mean that based on the information programmed in the device, this patient has:

  • A SureScan INS implanted in a tested location
  • SureScan leads with lead tips in tested locations
  • No extensions or abandoned leads

System is eligible for a scan anywhere on the body under the conditions listed in labeling.

  • 1.5T with maximum spatial magnetic gradient field of 19 T/m
  • Normal operating mode
  • Maximum gradient slew rate of 200 T/m/s

Refer to the Full-Body Eligible MRI Scan Conditions in the MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain for complete safety conditions.

MRI Head Eligibility Icon
Symbols Indicating Head Scan Eligibility

Symbols mean:

  • Medtronic neurostimulation system
  • Leads are not in the head or neck (i.e., not within the RF head coil)
  • No abandoned leads

System is eligible for a head scan under the conditions listed in labeling.

  • 1.5T with maximum spatial magnetic gradient field of 19 T/m
  • Transmit/receive head coil
  • ≤ 3.2 W/kg (1.45W/lb) average head SAR
  • Maximum gradient of 20 T/s

Refer to the Head-Only Eligible MRI Scan Conditions in the MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain for complete safety conditions.

MRI Eligibility Icon
Symbols Indicating MRI Eligibility Cannot Be Determined

Symbols mean that based on the information programmed into the device, the system’s MRI eligibility cannot be determined. Review the labeling or contact Medtronic to discuss the MRI safety based on the patient’s system configuration.

Note: The eligibility screen is displayed on the MyStim programmer screen for 20 minutes. After 20 minutes, MRI Mode will still be active, but the MRI Scan Eligibility screen will only be viewable if the same steps that initially activated MRI Mode are followed again.

Using the MRI Patient Eligibility Form to Determine MRI Eligibility

This form, completed by the patient's pain specialist, provides information about the patient’s implanted neurostimulator and MRI scan eligibility. The form may also include an Information Code, which you can provide to Medtronic to obtain more information about the patient’s implanted neurostimulation system.

If the MRI Patient Eligibility Form indicates one of the eligibility results shown above, confirm that the neurostimulator model number on the screen or form matches one of the model numbers listed in the Neurostimulator Model Numbers section of the MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain. Then refer to the appropriate scan conditions indicated above before proceeding with the MRI scan.

Patient Eligibility Form MRI Patient Eligibility Form

Medtronic Patient ID Card

Using the Medtronic Patient ID Card to Determine MRI Eligibility

A patient who brought only the Medtronic Patient ID Card may be eligible for an MRI scan anywhere in the body or head‐only scan if the model number on the ID card matches one of the model numbers listed in the Neurostimulator Model Numbers section of the MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain. Before proceeding with a scan, ensure that stimulation is turned off, and refer to the MRI Guidelines for Medtronic Neurostimulation Systems for Chronic Pain for complete safety conditions.

Using X-Rays for Product Identification

SureScan MRI compatible neurostimulators contain an “NMA” radiopaque identifier in the header block should X-ray be required for identification purposes; a braid identifies SureScan MRI leads. Refer to MRI Guidelines to determine eligibility.

combo-xray-image

Radiopaque Identifier in Header Block of SureScan MRI Compatible Neurostimulator

United States