Dauda Akingboye M, Ozoh John O, Towobola Olakunle A
Department of Diagnostic Radiology and Imaging, Dr George Mukhari Academic Hospital, Ga-Rankuwa, Pretoria, South Africa.
Department of Internal Medicine, School of Medicine, Sefako Makgatho Health Sciences University, Ga-Rankuwa, Pretoria, South Africa.
SA J Radiol. 2019 Apr 30;23(1):1707. doi: 10.4102/sajr.v23i1.1707. eCollection 2019.
Diagnostic investigations using radiation have become a critical feature of medical practice in recent times. However, the possibility of doctors' underestimation of risks of over-exposure of patients to diagnostic radiation still warrants further evaluation.
To investigate doctors' awareness of diagnostic radiation exposure at Dr George Mukhari Academic Hospital, South Africa.
This was a cross-sectional, analytical investigation of the awareness of doctors about radiation exposure in diagnostic radiology investigations. A cluster sampling technique was employed to recruit 217 participants. Consent and approval of the participants were sought and obtained before questionnaire administration during departmental meetings between October 2017 and March 2018.
Of the participants, 80% had no formal training on radiation exposure and 33.8% of them correctly estimated natural background radiation. Correct estimates of the effective dose from a single-view abdominal X-ray (AXR) were expressed by 7.5%, quantity of radiation of a single-phase computed tomography (CT) abdomen by 30.3% and dosage from a two-view unilateral mammogram by 29.1% of the participants. More than 75% of participants agreed that children are more sensitive to radiation, but only 10.5% suggested medical termination of pregnancy for a woman who had CT abdomen and pelvis with contrast. Dosage and risk of inducing fatal cancer from common but more complex imaging procedures were poorly understood. Only the doctors of the radiology department showed a statistically significant ( < 0.0001) association with regards to their radiation awareness.
Because of the high rate of poor awareness of radiation risks observed in this study, it is important to initiate, early in the medical curriculum for medical students, the need for a rotation in the Department of Radiology, similar to such rotations in other medical specialties.
近年来，使用辐射的诊断性检查已成为医疗实践的一个关键特征。然而，医生低估患者接受诊断性辐射过度暴露风险的可能性仍值得进一步评估。
调查南非乔治·穆哈里学术医院医生对诊断性辐射暴露的认识。
这是一项关于医生对放射诊断检查中辐射暴露认识的横断面分析调查。采用整群抽样技术招募了217名参与者。在2017年10月至2018年3月的科室会议期间，在进行问卷调查之前，征求并获得了参与者的同意和批准。
在参与者中，80%没有接受过关于辐射暴露的正规培训，其中33.8%正确估计了自然本底辐射。7.5%的参与者正确估计了单视图腹部X光（AXR）的有效剂量，30.3%的参与者正确估计了单相腹部计算机断层扫描（CT）的辐射量，29.1%的参与者正确估计了双视图单侧乳房X光检查的剂量。超过75%的参与者同意儿童对辐射更敏感，但只有10.5%的人建议对接受腹部和骨盆CT增强扫描的女性进行医学引产。对于常见但更复杂的成像程序的剂量以及诱发致命癌症的风险，人们了解甚少。只有放射科医生在辐射意识方面显示出统计学上的显著关联（<0.0001）。
由于本研究中观察到对辐射风险认识不足的比例很高，因此在医学生的医学课程早期就开始强调有必要像其他医学专科一样，在放射科进行轮转实习是很重要的。
