Bartlett Marissa L
Department of Nuclear Medicine, Level 3, Ned Hanlon Bld, Royal Brisbane & Women's Hospital, Butterfield St, Brisbane Q4029, Australia.
Radiat Prot Dosimetry. 2013 Nov;157(1):44-52. doi: 10.1093/rpd/nct119. Epub 2013 May 3.
Patients undergoing nuclear medicine scans can be a source of radiation exposure for staff, family and the public. In this paper, 12 common nuclear medicine scans are considered. Doses are estimated for a range of scenarios, to hospital staff, to the public and to the patients' co-workers and family. Estimates are based on dose rates measured as patients left the Nuclear Medicine department. Radiopharmaceutical clearance is calculated from biokinetic models described in International Commission on Radiological Protection publications 53, 80 and 106. For all scan types, and all scenarios, doses are estimated to be substantially less than the trigger level of 300 µSv. Within the hospital, Intensive Care Unit staff receive the highest dose (up to 80 µSv) from patients who have had a myocardial scan or a positron emission tomography scan. For out-patients, the highest doses (up to 100 µSv) are associated with travel on public transport (for 4 h) on the same day as the scan.
接受核医学扫描的患者可能会成为工作人员、家属和公众的辐射源。本文考虑了12种常见的核医学扫描。针对一系列场景，估算了医院工作人员、公众以及患者的同事和家属所受的剂量。估算基于患者离开核医学科时测量的剂量率。放射性药物清除率根据国际放射防护委员会出版物53、80和106中描述的生物动力学模型计算得出。对于所有扫描类型和所有场景，估算的剂量均远低于300微希沃特的触发水平。在医院内，重症监护病房的工作人员从接受过心肌扫描或正电子发射断层扫描的患者那里接受的剂量最高（可达80微希沃特）。对于门诊患者，最高剂量（可达100微希沃特）与扫描当天乘坐公共交通工具4小时有关。
