Chaparian Ali, Aghabagheri Mahdi
Department of Medical Physic, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Department of English Language, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
Iran J Reprod Med. 2013 Nov;11(11):899-904.
Pregnant women are sometimes exposed to ionizing radiation in radiology examinations for various reasons. In such cases, the radiation dose to the conceptus and subsequent risks should be estimated.
The purpose of this study was the calculation and presentation of fetal dose and subsequent risks resulted from different X-ray examinations.
An analytical simulation study was conducted and six common radiographies in different views and three types of special examinations were evaluated. The entrance skin exposure (ESE) was measured using a solid-state dosimeter. A Monte Carlo program was used in order to simulate different views of X-ray examinations and calculate the radiation doses received by the conceptus for every view of each examination. Then the risk of childhood cancer and small head size were calculated for different radiographies.
The fetal doses and consequence risks of the small head size and childhood cancer for the radiographs of chest, skull, and sinuses were negligible but the risks of childhood cancer and small head size due to radiographies of abdomen, lumbar spine, and pelvis areas were ponderable.
RESULTS of this study can be used for the pregnant women radiographies management.
孕妇有时会因各种原因在放射学检查中暴露于电离辐射。在这种情况下，应估算对胎儿的辐射剂量及后续风险。
本研究的目的是计算并呈现不同X线检查导致的胎儿剂量及后续风险。
进行了一项分析模拟研究，评估了六种不同视角的常见X线摄影及三种特殊检查类型。使用固态剂量计测量体表入射剂量（ESE）。为模拟X线检查的不同视角并计算每次检查每个视角下胎儿所接受的辐射剂量，使用了蒙特卡罗程序。然后计算不同X线摄影导致儿童期癌症和小头畸形的风险。
胸部、颅骨和鼻窦X线摄影的胎儿剂量以及小头畸形和儿童期癌症的后果风险可忽略不计，但腹部、腰椎和骨盆区域X线摄影导致儿童期癌症和小头畸形的风险较为显著。
本研究结果可用于孕妇X线摄影的管理。
