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Regulating MR Safety Standards
1Sue MacIntyre, MHA, R.T.(R)(MR), CRA, MRSO(MRSC), is magnetic resonance imaging supervisor and MRSO for University of Pittsburgh Medical Center Presbyterian Shadyside. She has worked in magnetic resonance imaging for 32 years.
Abstract:
Magnetic resonance (MR) imaging uses magnetic fields and radio waves to generate an image of the body. Though it is considered safe because it does not emit ionizing radiation, the strong magnetic fields produced by the MR scanner require unique safety considerations. The American College of Radiology (ACR) has provided guidance documents on MR safety since 2002 and recently updated and reorganized these documents into the ACR Manual on MR Safety. This article discusses the physics of MR imaging, the evolution of MR safety recommendations, and MR safety procedures.
Insights
Magnetic resonance (MR) imaging uses magnetic fields and radio waves for body scans. This article reviews MR imaging physics, safety evolution, and procedures, highlighting unique safety considerations for strong magnetic fields.
Area of Science:
- Medical Imaging Physics
- Radiological Safety
Background:
- Magnetic resonance (MR) imaging is a non-ionizing radiation diagnostic tool.
- Strong magnetic fields in MR scanners necessitate specific safety protocols.
- The American College of Radiology (ACR) has developed MR safety guidelines since 2002.
Purpose of the Study:
- To discuss the fundamental physics of MR imaging.
- To trace the historical development of MR safety recommendations.
- To outline current MR safety procedures and guidelines.
Main Methods:
- Review of MR imaging principles.
- Analysis of the evolution of ACR MR safety documents.
- Discussion of established MR safety practices.
Main Results:
- MR imaging relies on magnetic fields and radio waves.
- Continuous updates in MR safety reflect evolving understanding and technology.
- The ACR Manual on MR Safety consolidates current guidance.
Conclusions:
- Understanding MR physics is crucial for safety.
- Adherence to updated ACR guidelines ensures safe MR examinations.
- Comprehensive safety procedures mitigate risks associated with MR imaging.
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