{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:36:48Z","timestamp":1787017008139,"version":"build-2736575974"},"reference-count":23,"publisher":"BMJ","issue":"10","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Open"],"accepted":{"date-parts":[[2014,9,5]]},"published-print":{"date-parts":[[2014,10]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To explore the possible discomfort perceived by children participating in 7\u2005T MRI research, and the age range in which children are most likely to tolerate it well.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>A cross-sectional survey using age-appropriate questionnaires containing six measures of subjective discomfort (general discomfort, dizziness, noisiness, claustrophobia and feeling of cold or warm).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>For children, 3\u2005T clinical scanner in a tertiary referral teaching hospital; for adults, 3 and 7\u2005T scanner in a university research building.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>Non-sedated children and young people under 18\u2005years of age who underwent 3\u2005T clinical MRI for brain or musculoskeletal scans and adult volunteers attending 7\u2005T with or without 3\u2005T for brain scans.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>83% (89\/107) of involved individuals returned questionnaires. The most common discomfort among 31 children receiving 3\u2005T MRI was noisiness (39%), followed by cold (19%), general discomfort (16%), dizziness (13%) and claustrophobia (10%). The noise was reported more frequently in children younger than 12\u2005years than those older (p=0.021). The most common discomfort for 58 adults receiving 7\u2005T MRI was noisiness (43%). In adults, there was a higher frequency of general discomfort during 7 than 3\u2005T scans (p=0.031). More than 85% of adult respondents thought children aged 12\u201317\u2005years would tolerate 7\u2005T scans well, but only 35% and 15% thought children aged 10\u201311 and 8\u20139\u2005years, respectively, would.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Noisiness was the most common discomfort across all ages in 3 and 7\u2005T scanners. Although general discomfort was more common during 7 than 3\u2005T scans in adults, most adults thought children aged 12\u2005years or more would tolerate 7\u2005T MRI well. Cautious enrolment of children in 7\u2005T MRI study is warranted, but until there is more evidence of how well those aged 12\u2005years or more tolerate 7\u2005T MRI, we would caution against enrolling younger children.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmjopen-2014-006094","type":"journal-article","created":{"date-parts":[[2014,10,16]],"date-time":"2014-10-16T02:23:32Z","timestamp":1413426212000},"page":"e006094","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":35,"title":["Subjective discomfort in children receiving 3\u2005T MRI and experienced adults\u2019 perspective on children\u2019s tolerability of 7\u2005T: a cross-sectional questionnaire survey"],"prefix":"10.1136","volume":"4","author":[{"given":"I-Jun","family":"Chou","sequence":"first","affiliation":[{"name":"Division of Clinical Neuroscience, School of Medicine, University of Nottingham, Nottingham, UK"},{"name":"Division of Child Health, Obstetrics and Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK"},{"name":"Division of Paediatric Neurology and Paediatric General Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher R","family":"Tench","sequence":"additional","affiliation":[{"name":"Division of Clinical Neuroscience, School of Medicine, University of Nottingham, Nottingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Penny","family":"Gowland","sequence":"additional","affiliation":[{"name":"Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tim","family":"Jaspan","sequence":"additional","affiliation":[{"name":"Department of Radiology, Nottingham University Hospitals Trust, Nottingham, 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