Riley Robert F, Kamen Jacob, Tao Ashley, Gomez-Cardona Daniel
Overlake Medical Center & Clinics, United States of America.
Icahn School of Medicine at Mount Sinai, United States of America.
Am Heart J Plus. 2025 Apr 10;54:100543. doi: 10.1016/j.ahjo.2025.100543. eCollection 2025 Jun.
This study evaluated the effectiveness of scatter radiation reduction with the EggNest Complete shielding system compared to standard catheterization laboratory shielding.
Vertical poles with mounted radiation survey meters were positioned at six points around a catheterization laboratory imaging table where procedural staff usually stand. Meters were mounted on vertical tracks where the sensor could be raised on the track with stops every 20 cm (up to 200 cm). Fluoroscopy (15 frames per second) was then performed on an anthropomorphic phantom with a cardiac silhouette in PA and four quadrant angulations using a Toshiba Infinx fixed C-arm X-ray system with a 12″ detector. Scatter radiation measurements were reported in μSv/h under three radiation shielding conditions: no shielding, standard catheterization laboratory lead shielding, and the EggNest Complete system.
Average scatter radiation levels in all angulations were significantly higher below the x-ray table and at the positions near the head of the table (1862 ± 340 μSv/h at the head vs. 605 ± 316 μSv/h below the phantom waist, p < 0.05). Using the EggNest Complete system compared to standard shielding, average radiation exposure in all x-ray angulations and positions was reduced by 92.5 ± 3.9 % (83 ± 103 compared to 1087 ± 898 μS/h, p < 0.01). At the Operator and Assistant positions, scatter radiation averaged 9 ± 4 μSv/h using the EggNest Complete (98 ± 1 % reduction compared to no shielding, p < 0.01), 147 ± 101 μSv/h using Standard Shielding (75 ± 8 % reduction compared to no shielding, p < 0.01), and 605 ± 316 μSv/h without shielding.
Compared to standard shielding, the EggNest Complete system significantly reduced radiation levels at all positions around the x-ray table. At the operator and Assistant positions, EggNest complete provided 98 % reduction in scatter radiation dose.
本研究评估了与标准导管实验室屏蔽相比，EggNest Complete屏蔽系统在减少散射辐射方面的有效性。
在导管实验室成像台周围六个程序工作人员通常站立的点放置安装有辐射测量仪的垂直杆。测量仪安装在垂直轨道上，传感器可在轨道上每20厘米（最高200厘米）设置一个停止点的位置上升。然后使用配备12英寸探测器的东芝Infinx固定C形臂X射线系统，对具有PA心脏轮廓和四个象限角度的人体模型进行荧光透视（每秒15帧）。在三种辐射屏蔽条件下报告散射辐射测量值（单位：μSv/h）：无屏蔽、标准导管实验室铅屏蔽和EggNest Complete系统。
在所有角度下，X射线台下方和台头部附近位置的平均散射辐射水平显著更高（头部位置为1862±340μSv/h，而人体模型腰部下方为605±316μSv/h，p<0.05）。与标准屏蔽相比，使用EggNest Complete系统时，所有X射线角度和位置的平均辐射暴露降低了92.5±3.9%（83±103与1087±898μS/h相比，p<0.01）。在操作员和助手位置，使用EggNest Complete系统时散射辐射平均为9±4μSv/h（与无屏蔽相比降低了98±1%，p<0.01），使用标准屏蔽时为147±101μSv/h（与无屏蔽相比降低了75±8%，p<0.01），无屏蔽时为605±316μSv/h。
与标准屏蔽相比，EggNest Complete系统显著降低了X射线台周围所有位置的辐射水平。在操作员和助手位置，EggNest Complete系统使散射辐射剂量降低了98%。
