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All patients must complete a thorough safety screening before undergoing an MRI scan due to potential safety risks. The screening process typically includes a verbal interview to identify any contraindications. Patients should be asked about the presence of any foreign substances or materials that could interfere with the MRI. If a patient has a device or implant, its make and model must be verified using appropriate databases and MRI safety resources. Consultation with a radiologist or the referring physician may be necessary to determine whether MRI is the most appropriate imaging modality. Patients should wear gowns to eliminate the risk of metallic components in clothing, and they must be informed in advance about the procedure details and expected duration. Although gadolinium chelates are generally well-tolerated, MRI technologists and physicians must remain vigilant for potential adverse reactions. MRI departments should be equipped with appropriate medications and facilities to manage any reactions to contrast agents. The MRI scanner generates loud knocking noises that can potentially damage hearing. These noises can be minimized by providing patients with headphones or earplugs during the scan. Throughout the procedure, staff must continuously monitor the patient. An intercommunication system enables the patient to speak with the MRI technologist or radiology nurse, use a squeeze ball for signaling, and receive instructions as needed.

The 2024 edition of the American College of Radiology Manual on MR Safety offers an updated and comprehensive guide for managing MRI facilities. This document addresses MRI-specific hazards, such as projectile risks, radiofrequency burns, and device interactions, while providing best practices for safety screening, staffing, equipment usage, and emergency protocols. Key points include: A classification of safety zones (Zone I–IV) and MR-controlled access areas (see Image. MRI Safety Zones (I–IV) and MR-Controlled Access Areas). Defined roles for MR safety personnel, such as the MR Medical Director, MR Safety Officer, and MR Safety Expert. Updated screening protocols for patients, staff, and devices, with special attention to implants and ferromagnetic materials. Guidance on managing special patient populations, including pregnant, pediatric, and detained individuals. Coverage of alternative MR environments, such as positron emission tomography/MR, intraoperative MR, and 7-Tesla systems. Clear emergency procedures for incidents such as magnet quench or fire. The manual is a practical, evidence-based educational resource and a procedural blueprint, emphasizing risk mitigation, regular training, and ongoing safety assessments.