COMPARISON OF EXPOSURE TO RADIATION DURING PERCUTANEOUS TRANSPEDICULAR PROCEDURES, USING THREE FLUOROSCOPIC TECHNIQUES

ABSTRACT Objective: To compare radiation exposure to the surgeon, patient and radiation technician during percutaneous access of the vertebral pedicle, using three different fluoroscopic imaging set up. Methods: Percutaneous access in pedicle T9-L5 of nine adult male cadavers using three different fluoroscopic set ups: standard C-arm, C-arm with L-arm, and the biplanar technique. The radiation dose exposure of the surgeon, radiation technician, and cadaver were measured using dosimeter in each procedure and in real time. Results: The radiation dose absorbed by the surgeon was higher when using the standard C-arm fluoroscopic technique than when using the C-arm with L-arm or the biplanar technique. Conclusions: The use of the C-arm with L-arm, or the biplanar fluoroscopic technique, for percutaneous access to the vertebral pedicle, reduces the radiation exposure of the surgeon compared to the standard C-arm fluoroscopic technique.

摘要
研究目的：对比三种不同透视成像设置下，经皮椎弓根入路手术中手术医师、患者及放射技师所受的辐射暴露剂量。
研究方法：对9具成年男性尸体的T9-L5椎弓根行经皮入路操作，采用三种不同的透视设备设置：标准C形臂（C-arm）、带L形臂的C形臂以及双平面透视技术。每例操作中均使用剂量计实时测量手术医师、放射技师及尸体所受的辐射剂量。
研究结果：采用标准C形臂透视技术时，手术医师所吸收的辐射剂量高于使用带L形臂的C形臂或双平面透视技术时的剂量。
研究结论：与标准C形臂透视技术相比，采用带L形臂的C形臂或双平面透视技术进行椎弓根经皮入路操作，可降低手术医师所受的辐射暴露。