Department of Nursing, Umeå University, Umeå, Sweden.
Department of Radiation Sciences, Radiation Physics, Umeå University, Umeå, Sweden.
Eur Radiol. 2022 Nov;32(11):7896-7909. doi: 10.1007/s00330-022-08843-y. Epub 2022 Jun 8.
We explored the prevalence of health complaints subjectively associated with static magnetic field (SMF) and acoustic noise exposure among MR radiographers in Sweden, using CT radiographers as a control group. Additionally, we explored radiographers' use of strategies to mitigate adverse health effects.
A cross-sectional survey was sent to all hospitals with MR units in Sweden. MR and/or CT personnel reported prevalence and attribution of symptoms (vertigo/dizziness, nausea, metallic taste, illusion of movement, ringing sensations/tinnitus, headache, unusual drowsiness/tiredness, forgetfulness, difficulties concentrating, and difficulties sleeping) within the last year. We used logistic regression to test associations between sex, age, stress, SMF strength, working hours, and symptom prevalence. Data regarding hearing function, work-environmental noise, and strategies to mitigate adverse symptoms were also analysed.
In total, 529 out of 546 respondents from 86 hospitals were eligible for participation. A ≥ 20 working hours/week/modality cut-off rendered 342 participants grouped into CT (n = 75), MR (n = 121), or mixed personnel (n = 146). No significant differences in symptom prevalence were seen between groups. Working at ≥ 3T increased SMF-associated symptoms as compared with working at ≤ 1.5T (OR: 2.03, CI: 1.05-3.93). Stress was a significant confounder. Work-related noise was rated as more troublesome by CT than MR personnel (p < 0.01). MR personnel tended to use more strategies to mitigate adverse symptoms.
No significant differences in symptom prevalence were seen between MR and CT radiographers. However, working at 3T increased the risk of SMF symptoms, and stress increased adverse health effects. Noise nuisance was considered more problematic by CT than MR personnel.
• No significant differences in symptom prevalence were seen between MR and CT radiographers. • Working at ≥ 3 T doubled the odds of experiencing SMF symptoms (vertigo/dizziness, nausea, metallic taste, and/or illusion of movement) as compared to working exclusively at ≤ 1.5 T. • Work-related acoustic noise was less well mitigated and was rated as more troublesome by CT personnel than by MR personnel.
我们探索了瑞典磁共振（MR）放射技师在静磁场（SMF）和噪声暴露下主观报告的健康问题的流行率，以 CT 放射技师作为对照组。此外，我们还探讨了放射技师使用策略来减轻不良健康影响的情况。
我们向瑞典所有设有 MR 设备的医院发送了一份横断面调查。MR 和/或 CT 人员报告了过去一年中出现的症状（眩晕/头晕、恶心、金属味、运动错觉、耳鸣/耳鸣、头痛、异常嗜睡/疲劳、健忘、注意力不集中和睡眠困难）的流行率和归因。我们使用逻辑回归检验了性别、年龄、压力、SMF 强度、工作时间与症状流行率之间的关联。还分析了听力功能、工作环境噪声和减轻不良症状的策略的数据。
在 86 家医院的 546 名符合条件的参与者中，共有 529 名参与者符合条件。每周/每模式工作时间≥ 20 小时的分割线使 342 名参与者分为 CT（n = 75）、MR（n = 121）或混合人员（n = 146）。三组之间的症状流行率无显著差异。与工作在≤ 1.5T 相比，工作在≥ 3T 时与 SMF 相关的症状增加（OR：2.03，CI：1.05-3.93）。压力是一个显著的混杂因素。与 MR 人员相比，CT 人员认为工作相关噪声更麻烦（p < 0.01）。MR 人员倾向于使用更多策略来减轻不良症状。
MR 和 CT 放射技师之间的症状流行率无显著差异。然而，工作在 3T 时增加了 SMF 症状的风险，而压力增加了不良健康影响。与 MR 人员相比，CT 人员认为噪声干扰更大。
MR 和 CT 放射技师之间的症状流行率无显著差异。
与仅在≤ 1.5T 工作相比，在≥ 3T 工作时，SMF 症状（眩晕/头晕、恶心、金属味和/或运动错觉）的发生几率增加了一倍。
与 MR 人员相比，CT 人员认为与工作相关的噪声更难缓解，并且认为噪声干扰更大。
