Survey on Operating modalities of the staff members during clinical practices in the field of pediatric Interventional Cardiology in Italy

The questionnaire was designed based on the approaches reported in tables 7 to 9 of the Scientific Position Statement on multimodality dose optimization from the Image Gently Alliance by Hill et al. The survey consisted of two sections: 1) hardware features and software configuration of the equipment: manufacturer and model, installation year, detector type, storage of the last image hold and last fluoro loop, presence of dose reduction system (or noise reduction algorithms in image post-processing), availability of multiple filters for beam hardening, programmable radiological acquisition settings depending on patient size; 2) operator’s approach: selection of specific protocols by patient weight, removal of the anti-scatter grid, positioning of the patient between the tube and image detector, choice of fluoroscopy modes (low/normal/high) and pulse rate (pps) and image cine-acquisition frame rate (fps), use of collimation and magnification.本调查问卷基于希尔等人发表的《温和影像联盟（Image Gently Alliance）多模态剂量优化科学立场声明》中表7至表9所记载的方法设计。本次调查包含两个模块：1）设备硬件特性与软件配置：设备制造商与型号、安装年份、探测器类型、最后一次留存图像的存储设置与最后一次透视循环的存储情况、是否配备剂量降低系统（或图像后处理降噪算法）、是否具备多种线束硬化滤波装置、可根据患者体型调整放射学采集参数的可编程设置；2）操作者操作规范：依据患者体重选择专属扫描协议、移除防散射栅格、将患者摆放于X线管与图像探测器之间、选择透视模式（低/正常/高）与脉冲率（每秒脉冲数，pps）、图像电影采集帧率（每秒帧数，fps）、使用准直与放大功能。