伊朗德黑兰常规计算机断层扫描检查的儿童有效剂量评估
Pediatric effective dose assessment for routine computed tomography examinations in Tehran, Iran.
作者信息
Tahmasebzadeh Atefeh, Maziyar Asghar, Reiazi Reza, Kermanshahi Mojtaba Soltani, Anijdan Seyyed Hossein Mousavie, Paydar Reza
机构信息
Research Committee, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.
出版信息
J Med Signals Sens. 2022 Jul 26;12(3):227-232. doi: 10.4103/jmss.jmss_115_21. eCollection 2022 Jul-Sep.
BACKGROUND
The purpose of this study is to evaluate the effective dose (ED) for computed tomography (CT) examination in different age groups and medical exposure in pediatric imaging centers in Tehran, Iran.
METHODS
Imaging data were collected from 532 pediatric patients from four age groups subjected to three prevalent procedures. National Cancer Institute CT (NCICT) software was used to calculate the ED value.
RESULTS
The mean ED values were 1.60, 4.16, and 10.56 mSv for patients' procedures of head, chest, and abdomen-pelvis, respectively. This study showed a significant difference of ED value among five pediatric medical imaging centers ( < 0.05). In head, chest, and abdomen-pelvis exams, a reduction in ED was evident with decreasing patients' age.
CONCLUSION
As there were significant differences among ED values in five pediatric medical imaging centers, optimizing this value is necessary to decrease this variation. For head CT in infants and also abdomen-pelvis, further reduction in radiation exposure is required.
背景
本研究旨在评估伊朗德黑兰不同年龄组儿童计算机断层扫描（CT）检查的有效剂量（ED）以及儿科影像中心的医疗照射情况。
方法
收集了来自四个年龄组的532名接受三种常见检查的儿科患者的影像数据。使用美国国家癌症研究所CT（NCICT）软件计算ED值。
结果
头部、胸部和腹部-盆腔检查患者的平均ED值分别为1.60、4.16和10.56毫希沃特。本研究显示五个儿科医学影像中心之间的ED值存在显著差异（<0.05）。在头部、胸部和腹部-盆腔检查中，随着患者年龄的降低，ED明显减少。
结论
由于五个儿科医学影像中心的ED值存在显著差异，有必要优化该值以减少这种差异。对于婴儿的头部CT以及腹部-盆腔检查，需要进一步降低辐射暴露。
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