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Assessment of the effective radiation dose and radiogenic effect in intravenous urography imaging procedures
Radiation Physics and Chemistry ( IF 2.9 ) Pub Date : 2022-06-22 , DOI: 10.1016/j.radphyschem.2022.110351
Layal Jambi , Mohammed Alkhorayef , Mohammed Almuwanis , Hiba Omer , Nazar Alhasan , Duong Thanh Tai , Abdelmoneim Sulieman , David Bradley

The pathology of the urinary system is usually investigated using Intravenous Urography (IVU). The study objectives are to quantify patients’ radiation dose and radiation induced malignant tumors risk during IVU examination. The radiation doses during IVU and the subsequent risks from exposure are studied, using data from 50 patients imaged in one hospital. The demographic data given as (mean ± std) was as follows:The age of patients was 39 ± 14 years; height of patients was 1.7 ± 0.1m, the mass was 69 ± 10 kg and the body-mass-index was 24.3 ± 4.1 kg m−2. The physical exposure parameters recorded were: kVp: 74.04 ± 3.1, mAs: 33.64 ± 4. Moreover, the average number of films per procedure was 5.72 ± 1.49. The entrance-surface air kerma (ESAK) was 2.1 ± 0.64 mGy, and the mean effective dose was 0.131 ± 0.04 mSv. Calculation of the overall cancer risk yielded 5.9 × 10−6 procedures. ESAK (mGy) and effective dose values obtained in this study were comparable with reported studies as shown in the text. The effective and cancer risk are around ten times lower during IVU procedures than for example, contrast enhanced computed tomography urography (CTU) examination. Reduction of doses received by patients to meet the values of the diagnostic reference levels without compromising the quality and clarity of the images is highly recommended.

Ketwords

Radiation dosimetry; IVU; Radiology; Cancer risk; medical imaging.



中文翻译:

评估静脉尿路造影成像过程中的有效辐射剂量和放射效应

通常使用静脉尿路造影 (IVU) 来研究泌尿系统的病理学。研究目标是量化患者在 IVU 检查期间的辐射剂量和辐射诱发的恶性肿瘤风险。使用在一家医院拍摄的 50 名患者的数据,研究了 IVU 期间的辐射剂量和随后的暴露风险。人口统计数据(平均值±标准差)如下:患者年龄为39±14岁;患者身高 1.7 ± 0.1m,体重 69 ± 10 kg,体重指数 24.3 ± 4.1 kg m -2. 记录的物理曝光参数为:kVp:74.04 ± 3.1,mAs:33.64 ± 4。此外,每个程序的平均胶片数量为 5.72 ± 1.49。入口表面空气比释动能 (ESAK) 为 2.1 ± 0.64 mGy,平均有效剂量为 0.131 ± 0.04 mSv。总体癌症风险的计算产生了 5.9 × 10 -6程序。本研究中获得的 ESAK (mGy) 和有效剂量值与文中所示的报告研究具有可比性。与例如对比增强计算机断层扫描尿路造影 (CTU) 检查相比,IVU 手术的有效风险和癌症风险大约低 10 倍。强烈建议在不影响图像质量和清晰度的情况下减少患者接受的剂量以满足诊断参考水平的值。

关键词

辐射剂量学;静脉输液;放射学;癌症风险;医学影像。

更新日期:2022-06-26
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