Effectiveness of a novel real-time dosimeter in interventional radiology: a comparison of new and old radiation sensors
Effectiveness of a novel real-time dosimeter in interventional radiology: a comparison of new and old radiation sensors
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DOI：
10.1007/s12194-018-0484-z
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发表时间：
2018-12-01
影响因子：
1.6
通讯作者：
Zuguchi, Masayuki
中科院分区：
文献类型：
--
作者：
Inaba, Yohei;Nakamura, Masaaki;Zuguchi, Masayuki
辐射剂量管理在介入放射学（IR）程序（如经皮冠状动脉介入治疗）中非常重要，以防止辐射引起的损伤。因此，辐射剂量应监测在真实的时间在IR。本研究评估了一种新型的实时皮肤剂量计（RTSD）在我们的机构开发的基本特征。此外，我们比较了我们的新的和旧的辐射传感器和皮肤剂量监测器（SDM）的性能，与离子室参考值。我们评估了基本特征（例如，能量依赖性、剂量依赖性和角度依赖性）。我们的RTSD的性能是类似的SDM。特别是，我们的RTSD的新的辐射传感器表现出更好的剂量率依赖性相比，旧的传感器。此外，与旧传感器相比，新传感器具有尺寸小的优点，因此对X射线图像的影响最小。因此，所开发的皮肤剂量计和辐射传感器可用于实时测量患者的暴露和多通道监测的辐射在红外程序。新的剂量计系统可推荐用于患者皮肤暴露的辐射剂量的可视化和管理。
Radiation dose management is important in interventional radiology (IR) procedures, such as percutaneous coronary intervention, to prevent radiation-induced injuries. Therefore, radiation dose should be monitored in real time during IR. This study evaluated the fundamental characteristics of a novel real-time skin dosimeter (RTSD) developed at our institution. In addition, we compared the performance of our new and old radiation sensors and that of a skin dose monitor (SDM), with ion chamber reference values. We evaluated the fundamental characteristics (e.g., energy dependence, dose dependence, and angular dependence) of the RTSD developed by us in the diagnostic X-ray energy range. The performance of our RTSD was similar to that of the SDM. In particular, the new radiation sensor of our RTSD demonstrated better dose rate dependence compared to the old sensor. In addition, the new sensor had the advantage of being small in size and thus minimally affecting the X-ray images compared to the old sensor. Therefore, the developed skin dosimeter and radiation sensor may be useful in real-time measurement of patients' exposure to and multi-channel monitoring of radiation in IR procedures. The new dosimeter system can be recommended for visualization and management of the radiation dose to which the patients' skin is exposed.