[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: Tags: Radiologe Source Type: research