Title: The physics behind MRI safety, including static magnetic fields, radiofrequency fields, and gradient magnetic fields
Authors: Kolokolo Hannington
Shema Innocent
Kanyana Ruth
Kibirige David
Opolot Samuel Otekat
Wodidi Jonah
Senyonjo Timothy
Kwesiga Dominic
Kalule Mugagga
Tigasitwa Fred
Volume: 8
Issue: 3
Pages: 151-155
Publication Date: 2024/03/28
Abstract:
Magnetic Resonance Imaging (MRI), invented in 1969, is a widely used imaging modality that offers excellent soft tissue contrast and does not involve ionizing radiation. However, the strong magnetic fields and radiofrequency pulses used in MRI can pose potential safety risks to patients and healthcare workers. This review aims to provide an overview of the physics behind MRI safety, including static magnetic fields, radiofrequency fields, and gradient magnetic fields. Additionally, it discusses safety considerations, such as the risks associated with ferromagnetic objects, thermal effects, acoustic noise, and the potential for biological effects. Finally, this review highlights the importance of adherence to safety guidelines and the continuous development of safety protocols to ensure safe MRI practice.