Baptista M, Figueira C, Teles P, Cardoso G, Zankl M, Vaz P
Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, 2695-066 Bobadela LRS, Portugal
Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, 2695-066 Bobadela LRS, Portugal.
Radiat Prot Dosimetry. 2015 Jul;165(1-4):304-9. doi: 10.1093/rpd/ncv052. Epub 2015 Apr 5.
Interventional cardiology (IC) procedures can be complex, requiring the operators to work near the patient, during long exposure times. Owing to scattered radiation in the patient and the fluoroscopic equipment, the medical staff are exposed to a non-uniform radiation field and can receive high radiation doses. In this study, it is proposed to analyse staff doses obtained in real time, during IC procedures. A system for occupational dosimetry in real time was used. In order to identify some parameters that may affect the staff doses, Monte Carlo (MC) calculations, using MCNPX v.2.7.0 code and voxel phantoms, were performed. The data obtained from measurements, together with MC simulations, allowed the identification of actions and behaviours of the medical staff that could be considered a risk under routine working conditions. The implementation of this monitoring system for exposure of personnel may have a positive effect on optimisation of radiological protection in fluoroscopically guided cardiac procedures.
介入心脏病学（IC）手术可能很复杂，需要操作人员在长时间暴露的情况下靠近患者工作。由于患者体内和荧光透视设备中的散射辐射，医务人员暴露于不均匀的辐射场中，可能会接受高辐射剂量。在本研究中，建议分析IC手术过程中实时获得的工作人员剂量。使用了一种实时职业剂量测定系统。为了确定一些可能影响工作人员剂量的参数，使用MCNPX v.2.7.0代码和体素模型进行了蒙特卡罗（MC）计算。从测量中获得的数据以及MC模拟结果，有助于识别医务人员在常规工作条件下可能被视为风险的行为。这种人员暴露监测系统的实施可能会对荧光透视引导下心脏手术的放射防护优化产生积极影响。
