Department of Emergency Medicine, Gold Coast Hospital, Gold Coast, QLD, Australia.
Med J Aust. 2010 Oct 18;193(8):450-3. doi: 10.5694/j.1326-5377.2010.tb03998.x.
To assess emergency department (ED) doctors' knowledge of radiation doses associated with diagnostic imaging and to describe their practice with regard to informing patients of risk.
DESIGN, PARTICIPANTS AND SETTING: Prospective, questionnaire-based observational study in May 2009 among all 110 doctors in the EDs of a 570-bed teaching hospital and a 200-bed district hospital.
Percentage knowledge score; and frequency of discussing radiation risk with patients, based on responses to three scenarios rated on a visual analogue scale (VAS), where a score of 100 indicates doctors would always discuss it.
96 doctors (87%) completed the questionnaire. The overall mean knowledge score was 40% (95% CI, 38%-43%). Senior doctors scored somewhat higher than junior doctors, but not significantly (42% v 39%; P = 0.75). Over three-quarters of doctors (78%) underestimated the lifetime risk of fatal cancer attributable to a single computed tomography scan of the abdomen. Most doctors (76%) reported never having had any formal training on risks to patients from radiation exposure. The frequency at which doctors would inform patients of the risk of radiation varied greatly depending on the clinical scenario (mean VAS scores, between 38 and 90).
Emergency doctors in our sample had a varied knowledge of the risks from radiation exposure, but overall knowledge was poor. Staff should receive education, and the diagnostic imaging request process may need to include information on radiation doses and risks.
评估急诊科（ED）医生对诊断影像学相关辐射剂量的了解程度，并描述他们在告知患者风险方面的实践情况。
设计、参与者和设置：2009 年 5 月在一家 570 床位教学医院和一家 200 床位地区医院的急诊科所有 110 名医生中进行的前瞻性、基于问卷的观察性研究。
知识得分百分比；以及根据三个情景的视觉模拟量表（VAS）评分回答的与患者讨论辐射风险的频率，其中 100 分表示医生将始终讨论该风险。
96 名医生（87%）完成了问卷。总体平均知识得分为 40%（95%CI，38%-43%）。资深医生的得分略高于初级医生，但无统计学意义（42%比 39%；P=0.75）。超过四分之三的医生（78%）低估了单次腹部计算机断层扫描引发致命癌症的终生风险。大多数医生（76%）报告从未接受过任何关于辐射对患者风险的正规培训。医生告知患者辐射风险的频率因临床情景而异（平均 VAS 评分在 38 到 90 之间）。
我们研究样本中的急诊科医生对辐射暴露风险的了解程度参差不齐，但总体知识水平较差。员工应接受教育，诊断成像请求过程可能需要包括辐射剂量和风险信息。
