Pantos I, Koukorava C, Nirgianaki E, Carinou E, Tzanalaridou E, Efstathopoulos E P, Katritsis D G
Department of Cardiology, Athens Euroclinic, Athens, Greece.
Radiat Prot Dosimetry. 2012 Jul;150(3):306-11. doi: 10.1093/rpd/ncr414. Epub 2012 Jan 10.
Radiation exposure of the operator during cardiac catheter ablation procedures was assessed for an experienced cardiologist adopting various measures of radiation protection and utilised electroanatomic navigation. Chip thermoluminescent dosemeters were placed at the eyes, chest, wrists and legs of the operator. The ranges of fluoroscopy time and air kerma area product values associated with cardiac ablation procedures were wide (6.3-48.3 min and 1.7-80.3 Gy cm(2), respectively). The measured median radiation doses per procedure for each monitored position were 23.6 and 21.3 μSv to the left and right wrists, respectively, 25.3 and 30.4 μSv to the left and right legs, respectively. The doses to the eyes were below the minimum detectable dose of 9 μSv. The estimated median effective dose was 22.5 μSv. Considering the actual workload of the operator, the calculated annual doses to the hands, legs and eyes, as well as the annual effective dose, were all below the corresponding limits. The findings of this study indicate that cardiac ablation procedures performed at a modern laboratory do not impose a high radiation hazard to the operator when radiation protection measures are routinely adopted.
对于一位采用各种辐射防护措施并使用电解剖导航的经验丰富的心脏病专家，评估了其在心脏导管消融手术期间的辐射暴露情况。将芯片热释光剂量计放置在操作人员的眼睛、胸部、手腕和腿部。与心脏消融手术相关的透视时间和气比释动能面积乘积值范围很广（分别为6.3 - 48.3分钟和1.7 - 80.3 Gy cm²）。每个监测位置每次手术的测量中位辐射剂量分别为：左手腕和右手腕为23.6和21.3 μSv，左腿和右腿为25.3和30.4 μSv。眼睛所受剂量低于9 μSv的最小可检测剂量。估计中位有效剂量为22.5 μSv。考虑到操作人员的实际工作量，计算得出的手部、腿部和眼睛的年度剂量以及年度有效剂量均低于相应限值。本研究结果表明，在现代实验室进行心脏消融手术时，若常规采取辐射防护措施，不会对操作人员造成高辐射危害。
