Approved for 1 Category A CE credits 

This quiz is the companion to the Directed Reading article "Regulating MR Safety Standards". 

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.