Electromagnetic Exposure of Personnel Involved in Cardiac MRI Examinations in 1.5T, 3T and 7T Scanners

Authors: Katarzyna Sklinda, Jolanta Karpowicz, Andrzej Stępniewski

Year: 2021 Dec 22

Category: Environmental and Occupational Health

Journal: Int J Environ Res Public Health

DOI: 10.3390/ijerph19010076

URL: https://www.mdpi.com/1660-4601/19/1/76

Abstract

Abstract Summary

Overview

The increasing use of cardiac magnetic resonance (CMR) notably for post-COVID-19 assessments raises concerns about the exposure of medical personnel to static magnetic fields.

Methods

  • Observational study on static and motion-induced electromagnetic fields (STmf and TVEmf).
  • Comparisons drawn against labor law, vertigo perception probability, and typical exposure during head MRI scans.

Findings

Examinations using medium, high, and ultrahigh field MRI scanners showed that while most electromagnetic exposures remain below the vertigo perception threshold, a significant minority reached medium or high levels.

Conclusion

With the rising use of CMRs, there is an identifiable increase in vertigo-related risks among MRI personnel under normal working conditions as defined by current safety standards. A review and potential overhaul of these standards are recommended to ensure safety.

electromagnetic fields MRI health risks personnel exposure cardiac imaging CMR safety regulations
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