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Short-term effects experienced during examinations in an actively shielded 7 T MR

Hansson, Boel LU ; Höglund, Peter LU ; Markenroth Bloch, Karin LU orcid ; Nilsson, Markus LU ; Olsrud, Johan LU ; Wilén, Jonna and Björkman-Burtscher, Isabella M. LU (2019) In Bioelectromagnetics 40(4). p.234-249
Abstract

The objective of this study was to evaluate occurrence and strength of short-term effects experienced by study participants in an actively shielded (AS) 7 tesla (7 T) magnetic resonance (MR) scanner, to compare results with earlier reports on passively shielded (PS) 7 T MR scanners, and to outline possible healthcare strategies to improve patient compliance. Study participants (n = 124) completed a web-based questionnaire directly after being examined in an AS 7 T MR (n = 154 examinations). Most frequently experienced short-term effects were dizziness (84%) and inconsistent movement (70%), especially while moving into or out of the magnet. Peripheral nerve stimulation (PNS)—twitching—was experienced in 67% of research examinations and... (More)

The objective of this study was to evaluate occurrence and strength of short-term effects experienced by study participants in an actively shielded (AS) 7 tesla (7 T) magnetic resonance (MR) scanner, to compare results with earlier reports on passively shielded (PS) 7 T MR scanners, and to outline possible healthcare strategies to improve patient compliance. Study participants (n = 124) completed a web-based questionnaire directly after being examined in an AS 7 T MR (n = 154 examinations). Most frequently experienced short-term effects were dizziness (84%) and inconsistent movement (70%), especially while moving into or out of the magnet. Peripheral nerve stimulation (PNS)—twitching—was experienced in 67% of research examinations and showed a dependence between strength of twitches and recorded predicted PNS values. Of the participants, 74% experienced noise levels as acceptable and the majority experienced body and room temperature as comfortable. Of the study participants, 95% felt well-informed and felt they had had good contact with the staff before the examination. Willingness to undergo a future 7 T examination was high (>90%). Our study concludes short-term effects are often experienced during examinations in an AS 7 T MR, leaving room for improvement in nursing care strategies to increase patient compliance. Bioelectromagnetics. 2019;9999:XX–XX.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
bias, dizziness, motion, patient compliance, peripheral nerve stimulation
in
Bioelectromagnetics
volume
40
issue
4
pages
234 - 249
publisher
Wiley-Liss Inc.
external identifiers
  • scopus:85063578974
  • pmid:30920671
ISSN
0197-8462
DOI
10.1002/bem.22189
language
English
LU publication?
yes
id
4184d16c-bbae-473b-80c7-2ded1af04650
date added to LUP
2019-04-08 13:07:18
date last changed
2025-10-16 16:44:03
@article{4184d16c-bbae-473b-80c7-2ded1af04650,
  abstract     = {{<p>The objective of this study was to evaluate occurrence and strength of short-term effects experienced by study participants in an actively shielded (AS) 7 tesla (7 T) magnetic resonance (MR) scanner, to compare results with earlier reports on passively shielded (PS) 7 T MR scanners, and to outline possible healthcare strategies to improve patient compliance. Study participants (n = 124) completed a web-based questionnaire directly after being examined in an AS 7 T MR (n = 154 examinations). Most frequently experienced short-term effects were dizziness (84%) and inconsistent movement (70%), especially while moving into or out of the magnet. Peripheral nerve stimulation (PNS)—twitching—was experienced in 67% of research examinations and showed a dependence between strength of twitches and recorded predicted PNS values. Of the participants, 74% experienced noise levels as acceptable and the majority experienced body and room temperature as comfortable. Of the study participants, 95% felt well-informed and felt they had had good contact with the staff before the examination. Willingness to undergo a future 7 T examination was high (&gt;90%). Our study concludes short-term effects are often experienced during examinations in an AS 7 T MR, leaving room for improvement in nursing care strategies to increase patient compliance. Bioelectromagnetics. 2019;9999:XX–XX.</p>}},
  author       = {{Hansson, Boel and Höglund, Peter and Markenroth Bloch, Karin and Nilsson, Markus and Olsrud, Johan and Wilén, Jonna and Björkman-Burtscher, Isabella M.}},
  issn         = {{0197-8462}},
  keywords     = {{bias; dizziness; motion; patient compliance; peripheral nerve stimulation}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{4}},
  pages        = {{234--249}},
  publisher    = {{Wiley-Liss Inc.}},
  series       = {{Bioelectromagnetics}},
  title        = {{Short-term effects experienced during examinations in an actively shielded 7 T MR}},
  url          = {{http://dx.doi.org/10.1002/bem.22189}},
  doi          = {{10.1002/bem.22189}},
  volume       = {{40}},
  year         = {{2019}},
}