[Magnetic resonance imaging : Recent studies on biological effects of static magnetic and high ‑frequency electromagnetic fields].
[Magnetic resonance imaging : Recent studies on biological effects of static magnetic and high‑frequency electromagnetic fields].
Radiologe. 2017 May 29;:
Authors: Pophof B, Brix G
Abstract
PROBLEM: During the last few years, new studies on biological effects of strong static magnetic fields and on thermal effects of high-frequency electromagnetic fields used in magnetic resonance imaging (MRI) were published. Many of these studies have not yet been included in the current safety recommendations.
METHOD: Scientific publications since 2010 on biological effects of static and electromagnetic fields in MRI were researched and evaluated.
RESULTS: New studies confirm older publications that have already described effects of static magnetic fields on sensory organs and the central nervous system, accompanied by sensory perceptions. A new result is the direct effect of Lorentz forces on ionic currents in the semicircular canals of the vestibular system. Recent studies of thermal effects of high-frequency electromagnetic fields were focused on the development of anatomically realistic body models and a more precise simulation of exposure scenarios.
RECOMMENDATION FOR PRACTICE: Strong static magnetic fields can cause unpleasant sensations, in particular, vertigo. In addition, they can influence the performance of the medical staff and thus potentially endanger the patient's safety. As a precaution, medical personn...
Source: Der Radiologe - Category: Radiology Authors: Pophof B, Brix G Tags: Radiologe Source Type: research