Department of Radiology, Toranomon Hospital, 2-2-2 Toranomon, Minato-ku, Tokyo 105-8470, Japan.
Course of Radiological Technology, Health Sciences, Tohoku University Graduate School of Medicine, 2-1 Seiryo, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
Radiat Prot Dosimetry. 2020 Jun 24;188(3):389-396. doi: 10.1093/rpd/ncz298.
The purpose of this study was to measure the peak skin dose (PSD) and bilateral lens doses using radiophotoluminescence glass dosimeters and to determine the factors influencing the radiation dose in cases of cerebral aneurysm treated with pipeline embolization devices (PEDs). The cumulative dose, PSD and right and left lens doses were 3818.1 ± 1604.6, 1880.0 ± 723.0, 124.8 ± 49.2 and 180.7 ± 124.8 mGy, respectively. Using multivariate analysis, body mass index (p < 0.01; odds ratio (OR) = 1.806; 95% confidence interval (CI) = 1.007-3.238) and deployment time of PED (p < 0.05; OR = 1.107; 95% CI = 1.001-1.224) were found to be the independent predictors of PSD exceeding 2 Gy. Measures such as collimation of the radiation field and optimization of radiation dose should be taken to reduce the radiation to the patient.
本研究旨在使用放射性光致发光玻璃剂量计测量峰值皮肤剂量 (PSD) 和双侧晶状体剂量，并确定使用 Pipeline 栓塞装置 (PED) 治疗脑动脉瘤时影响辐射剂量的因素。累积剂量、PSD 以及右、左晶状体剂量分别为 3818.1±1604.6、1880.0±723.0、124.8±49.2 和 180.7±124.8 mGy。多变量分析显示，体重指数（p<0.01；比值比（OR）=1.806；95%置信区间（CI）=1.007-3.238）和 PED 部署时间（p<0.05；OR=1.107；95%CI=1.001-1.224）是 PSD 超过 2 Gy 的独立预测因子。应采取准直辐射场和优化辐射剂量等措施，以降低患者的辐射剂量。
