Sandblom V, Mai T, Almén A, Rystedt H, Cederblad Å, Båth M, Lundh C
Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, SE-413 45 Gothenburg, Sweden.
J Radiol Prot. 2013 Sep;33(3):693-702. doi: 10.1088/0952-4746/33/3/693.
Optimisation of radiological protection for operators working with fluoroscopically guided procedures has to be performed during the procedure, under varying and difficult conditions. The aim of the present study was to evaluate the impact of a system for real-time visualisation of radiation dose rate on optimisation of occupational radiological protection in fluoroscopically guided procedures. Individual radiation dose measurements, using a system for real-time visualisation, were performed in a cardiology laboratory for three cardiologists and ten assisting nurses. Radiation doses collected when the radiation dose rates were not displayed to the staff were compared to radiation doses collected when the radiation dose rates were displayed. When the radiation dose rates were displayed to the staff, one cardiologist and the assisting nurses (as a group) significantly reduced their personal radiation doses. The median radiation dose (Hp(10)) per procedure decreased from 68 to 28 μSv (p = 0.003) for this cardiologist and from 4.3 to 2.5 μSv (p = 0.001) for the assisting nurses. The results of the present study indicate that a system for real-time visualisation of radiation dose rate may have a positive impact on optimisation of occupational radiological protection. In particular, this may affect the behaviour of staff members practising inadequate personal radiological protection.
对于从事透视引导操作的操作人员，必须在操作过程中、在各种复杂困难的条件下进行放射防护的优化。本研究的目的是评估辐射剂量率实时可视化系统对透视引导操作中职业放射防护优化的影响。在心脏科实验室，使用实时可视化系统对三名心脏病专家和十名辅助护士进行了个人辐射剂量测量。将未向工作人员显示辐射剂量率时收集的辐射剂量与显示辐射剂量率时收集的辐射剂量进行比较。当向工作人员显示辐射剂量率时，一名心脏病专家和辅助护士（作为一个群体）显著降低了他们的个人辐射剂量。该心脏病专家每次操作的中位辐射剂量（Hp(10)）从68 μSv降至28 μSv（p = 0.003），辅助护士从4.3 μSv降至2.5 μSv（p = 0.001）。本研究结果表明，辐射剂量率实时可视化系统可能对职业放射防护的优化产生积极影响。特别是，这可能会影响个人放射防护措施不当的工作人员的行为。
