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investigation of the effects of magnetic fields on memory in occupationally exposed mri radiographers

Published online by Cambridge University Press:  14 September 2005

deirdre a. gray
deirdre a. gray
Affiliation:
research assistant, department of radiography, faculty of health and human sciences, university of hertfordshire, college lane, hatfield, uk
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Abstract

aims: 1. compare memory ability between ct and mri radiographers using the rey auditory verbal learning test (ravlt) and between mri radiographers working with 1 and 1.5tesla (t) scanners. 2. investigate the change in memory ability (as measured by ravlt) with increasing time worked in mri.

subjects: 11 ct and mri radiographers from four hospital sites were included. each worked exclusively in their modality. ravlt was administered once to each subject. results show no significant difference between mri and ct groups' scores. there were significantly lower scores in subjects who worked more than 5 years in mri and subjects who worked with 1.5t scanners.

the results indicate that static magnetic fields may have a detrimental effect on memory ability. these results indicate the need for further research into the neuropsychological effects of the mri environment on occupationally exposed staff.

Keywords

radiographyradiologymagnetic resonance imagingmrimagnetic fieldsmagnetselectromagnetic fieldsmemoryamnesiaoccupational safety
Type
original paper
Information
Journal of Diagnostic Radiography and Imaging , Volume 5 , Issue 3-4 , March 2005 , pp. 159 - 169
Copyright
© 2005 cambridge university press

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Footnotes

this research was carried out as part of the bsc (hons) degree in diagnostic radiography (1999) at: queen margaret university college, radiography department, leith campus, edinburgh, uk