Department of Anesthesiology and Pain Medicine, Konkuk University Medical Center, Seoul, Korea.
Korean J Pain. 2014 Apr;27(2):145-51. doi: 10.3344/kjp.2014.27.2.145. Epub 2014 Mar 28.
The physician's hands are close to the X-ray field in C-arm fluoroscopy-guided pain interventions. We prospectively investigated the radiation attenuation of Proguard RR-2 gloves.
In 100 cases, the effective doses (EDs) of two dosimeters without a radiation-reducing glove were collected. EDs from the two dosimeters-one dosimeter wrapped with a glove and the other dosimeter without a glove- were also measured at the side of the table (Group 1, 140 cases) and at a location 20 cm away from the side of the table (Group 2, 120 cases). Mean differences such as age, height, weight, radiation absorbed dose (RAD), exposure time, ED, and ratio of EDs were analyzed.
In the EDs of two dosimeters without gloves, there were no significant differences (39.0 ± 36.3 µSv vs. 38.8 ± 36.4 µSv) (P = 0.578). The RAD (192.0 ± 182.0 radcm(2)) in Group 2 was higher than that (132.3 ± 103.5 radcm(2)) in Group 1 (P = 0.002). The ED (33.3 ± 30.9 µSv) of the dosimeter without a glove in Group 1 was higher than that (12.3 ± 8.8 µSv) in Group 2 (P < 0.001). The ED (24.4 ± 22.4 µSv) of the dosimeter wrapped with a glove in Group 1 was higher than that (9.2 ± 6.8 µSv) in Group 2 (P < 0.001). No significant differences were noted in the ratio of EDs (73.5 ± 6.7% vs. 74.2 ± 9.3%, P = 0.469) between Group 1 and Group 2.
Proguard RR-2 gloves have a radiation attenuation effect of 25.8-26.5%. The radiation attenuation is not significantly different by intensity of scatter radiation or the different RADs of C-arm fluoroscopy.
在 C 臂透视引导下的疼痛介入治疗中,医生的手靠近 X 射线场。我们前瞻性地研究了 Proguard RR-2 手套的辐射衰减。
在 100 例患者中,收集了两个无辐射防护手套的剂量计的有效剂量(ED)。在表侧(140 例,第 1 组)和距离表侧 20cm 处(120 例,第 2 组),还测量了一个剂量计包裹手套和另一个剂量计无手套的 ED。分析了年龄、身高、体重、辐射吸收剂量(RAD)、曝光时间、ED 和 ED 比等均值差异。
在无手套的两个剂量计的 ED 中,无显著差异(39.0 ± 36.3µSv 比 38.8 ± 36.4µSv)(P=0.578)。第 2 组的 RAD(192.0 ± 182.0radcm²)高于第 1 组的 RAD(132.3 ± 103.5radcm²)(P=0.002)。第 1 组无手套剂量计的 ED(33.3 ± 30.9µSv)高于第 2 组的 ED(12.3 ± 8.8µSv)(P<0.001)。第 1 组包裹手套剂量计的 ED(24.4 ± 22.4µSv)高于第 2 组的 ED(9.2 ± 6.8µSv)(P<0.001)。第 1 组和第 2 组的 ED 比(73.5 ± 6.7%比 74.2 ± 9.3%)无显著差异(P=0.469)。
Proguard RR-2 手套具有 25.8-26.5%的辐射衰减效果。辐射衰减与散射线强度或 C 臂透视的不同 RAD 无关。