Magnetic Field Hazards
MRI safety addresses static magnetic field risks such as projectile hazards and device interactions and requires strict screening for ferromagnetic implants and external objects. Implement controlled access zones and signage and use ferromagnetic detection systems where appropriate. Staff training and patient screening reduce the risk of adverse events.
RF and SAR Management
Radiofrequency energy can cause tissue heating and requires monitoring of specific absorption rate and sequence selection to limit thermal load. Use appropriate coil selection and positioning and follow manufacturer guidelines for SAR limits especially in vulnerable populations. Document any device related heating concerns and adjust protocols accordingly.
Implant and Device Considerations
Verify MRI conditional labeling and follow device specific scanning parameters and monitoring requirements and consult with device manufacturers when necessary. For non conditional devices perform risk benefit assessment and consider alternative imaging modalities. Maintain a registry of implanted devices and ensure communication with referring clinicians and patients.
Emergency Preparedness
Establish protocols for quench events patient removal and management of adverse reactions and ensure staff are trained in emergency procedures and MRI safe resuscitation. Coordinate with hospital safety and engineering for rapid response and equipment compatibility. Regular drills and incident reviews improve readiness and safety culture.
