Related Experiment Video
Updated: Aug 16, 2026
Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
[Risks associated with MRI: safety rules, incidents, and accidents]
E de Kerviler1, C de Bazelaire, O Mathieu
1Service de Radiologie, Hôpital Saint-Louis, Claude-Vellefaux, Paris. eric.de-kerviler@sls.aphp.fr
Abstract:
It is now accepted that MR imaging does not present any biological risk for humans, even in cases of repeated exposure. However, several of the MR components (magnetic field, gradients, RF pulses, electrodes...) may cause some inconveniences to patients, most of them being reversible. However, severe accidents have been reported. Even though screening of patients for MR imaging eligibility is performed to identify patients with contra-indications to MRI, the lack of vigilance or the ignorance of certain basic safety requirements could lead to serious adverse effects, including death. The goal of this article is to review the various accidents reported with MRI, to explain their mechanism, and to describe means of prevention.
Insights
Magnetic Resonance (MR) imaging is biologically safe, but components can cause reversible patient discomfort. Vigilance and adherence to safety protocols are crucial to prevent severe adverse events, including fatalities, during MR procedures.
Area of Science:
- Medical Imaging Physics
- Biomedical Engineering
- Radiological Safety
Context:
- Magnetic Resonance (MR) imaging is a widely used diagnostic tool.
- While MR imaging is considered biologically safe, potential risks exist from its components.
- Patient screening is performed, but vigilance is paramount to prevent accidents.
Purpose:
- To review reported accidents associated with MR imaging.
- To elucidate the mechanisms underlying these MR-related incidents.
- To outline essential preventive measures for MR safety.
Summary:
- MR imaging components like magnetic fields and radiofrequency pulses can cause patient inconvenience, though typically reversible.
- Despite patient screening, lack of vigilance or safety knowledge can lead to severe adverse events, including fatalities.
- This review details reported MR accidents, their causes, and crucial prevention strategies.
Impact:
- Enhances understanding of MR imaging risks beyond biological effects.
- Provides critical information for healthcare professionals to improve patient safety protocols.
- Aims to reduce the incidence of severe adverse events and fatalities in MR environments.
Related Concept Videos
01:14Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
01:24Magnetic Resonance Imaging
01:21Imaging Studies for Cardiovascular System IV: CMRI
01:27Imaging Studies IV: Magnetic Resonance Imaging
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
01:21Types of Reports II: Incident or Occurrence Report
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...