Lahham Adnan, Issa Ahlam, ALMasri Hussein
Center For Radiation Science & Technology, Al-Quds University, East Jerusalem, Palestine.
Medical Imaging Department, Al-Quds University, East Jerusalem, Palestine.
Radiat Prot Dosimetry. 2018 Feb 1;178(3):298-303. doi: 10.1093/rpd/ncx110.
Radiation doses to patients resulting from chest X-ray examinations were evaluated in four medical centers in the West Bank and East Jerusalem-Palestine. Absorbed organ and effective doses were calculated for a total of 428 adult male and female patients by using commercially available Monte Carlo based softwares; CALDOSE-X5 and PCXMC-2.0, and hermaphrodite mathematical adult phantoms. Patients were selected randomly from medical records in the time period from November 2014 to February 2015. A database of surveyed patients and exposure factors has been established and includes: patient's height, weight, age, gender, X-ray tube voltage, electric current (mAs), examination projection (anterior posterior (AP), posterior anterior (PA), lateral), X-ray tube filtration thickness in each X-ray equipment, anode angle, focus to skin distance and X-ray beam size. The average absorbed doses in the whole body from different projections were: 0.06, 0.07 and 0.11 mGy from AP, PA and lateral projections, respectively. The average effective dose for all surveyed patients was 0.14 mSv for all chest X-ray examinations and projections in the four investigated medical centers. The effect of projection geometry was also investigated. The average effective doses for AP, PA and lateral projections were 0.14, 0.07 and 0.22 mSv, respectively. The collective effective dose estimated for the exposed population was ~60 man-mSv.
对巴勒斯坦西岸和东耶路撒冷四个医疗中心胸部X光检查给患者带来的辐射剂量进行了评估。通过使用市售的基于蒙特卡洛的软件CALDOSE-X5和PCXMC-2.0以及两性人数学成人模型，计算了总共428名成年男性和女性患者的器官吸收剂量和有效剂量。在2014年11月至2015年2月期间从病历中随机选择患者。已建立了一个调查患者和照射因素的数据库，其中包括：患者的身高、体重、年龄、性别、X光管电压、电流（毫安秒）、检查投影（前后位（AP）、后前位（PA）、侧位）、每个X光设备中的X光管过滤厚度、阳极角度、焦点到皮肤的距离以及X光束大小。不同投影下全身的平均吸收剂量分别为：前后位投影0.06毫戈瑞、后前位投影0.07毫戈瑞、侧位投影0.11毫戈瑞。在四个被调查的医疗中心，所有接受胸部X光检查和投影的被调查患者的平均有效剂量为0.14毫希沃特。还研究了投影几何形状的影响。前后位、后前位和侧位投影的平均有效剂量分别为0.14毫希沃特、0.07毫希沃特和0.22毫希沃特。估计受照射人群的集体有效剂量约为60人-毫希沃特。
