Radiation risk during thoracic CT scan for diagnostic and radiotherapy planning procedures in Hassan II, Hospital, Agadir Morocco

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-03-04 DOI:10.1051/radiopro/2024007

S. Semghouli, M. El Fahssi, A. Choukri, B. Amaoui

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Abstract

Objective: This study aims to establish diagnostic reference levels and radiation-induced risk for the diagnostic CT-scans and the radiotherapy planning CT-scans of the thorax in the regional hospital of Agadir, Morocco. Material and Method: Data from two groups of patients undergoing thoracic CT-scans with either diagnostic CT-scans (G1, n=120) or Radiotherapy planning CT-scans (G2, n=120) are collected. All acquisitions were helical. DRLs is calculated for each type of thoracic CT-scan by estimating the 75% percentile of the CTDIvol and the DLP. The total cancer risk RC was calculated according to the ICRP publication 103. The data are statistically analyzed by SPSS Statistics V21.0. The Pearson’s rank correlation coefficient is chosen to study the relationship between the following parameters: DLP, CTDIvol, effective dose, and the cancer risk. Results: DRLs in terms of CTDIvol and DLP for radiotherapy planning of thorax were 19.37mGy and 851.9 mGy.cm respectively. In diagnostic CT-scans, DRLs in terms of CTDIvol for pulmonary embolism, infectious lung disease,Chronic Obstructive Pulmonary Disease (COPD) were 11.13mGy, 10.26mGy, and 7.37mGy respectively, and DRLs in terms of DLP were 417,73 mGy.cm, 451,9 mGy.cmand 317,78 mGy.cmrespectively. The cancer risk for radiotherapy planning CT-scans is ranged between 209 and 1564 with a mean value of 715 per 1 million of CT-scan. For diagnostic CT-scans, the cancer risk is ranged between 199 and 626 with a mean value of 357 per 1 million for pulmonary embolism, between 238 and 668 with a mean value of 369 per 1 million for infectious lung disease, and between 130 and 393 with a mean value of 244 per 1 million for COPD. Conclusion: Optimizing the doses received by patients in medical imaging, particularly CT, has become an obligation. Reviewing practices and procedures and promoting a radiation protection culture can help to better manage the radiation doses received by the public.

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摩洛哥阿加迪尔哈桑二世医院在胸部 CT 扫描诊断和放射治疗计划过程中的辐射风险

研究目的本研究旨在确定摩洛哥阿加迪尔地区医院胸部 CT 扫描诊断和放疗计划 CT 扫描的诊断参考水平和辐射诱发风险。材料和方法：收集两组接受胸部 CT 扫描的患者的数据，其中一组为诊断 CT 扫描（G1，n=120），另一组为放疗计划 CT 扫描（G2，n=120）。所有采集均为螺旋扫描。通过估算 CTDIvol 和 DLP 的 75% 百分位数，计算出每种胸部 CT 扫描的 DRLs。总癌症风险 RC 是根据 ICRP 第 103 号出版物计算得出的。数据采用 SPSS 统计软件 V21.0 进行统计分析。选择皮尔逊秩相关系数来研究以下参数之间的关系：DLP、CTDIvol、有效剂量和癌症风险之间的关系。结果胸部放疗计划的 CTDIvol 和 DLP 的 DRL 分别为 19.37mGy 和 851.9 mGy.cm。在诊断 CT 扫描中，肺栓塞、肺部感染性疾病、慢性阻塞性肺病（COPD）的 CTDIvol DRL 分别为 11.13mGy、10.26mGy 和 7.37mGy，DLP DRL 分别为 417.73 mGy.cm、451.9 mGy.cm 和 317.78 mGy.cm。放疗计划 CT 扫描的癌症风险介于 209 和 1564 之间，平均值为每百万 CT 扫描 715 例。对于诊断性 CT 扫描，肺栓塞的癌症风险介于 199 和 626 之间，平均值为每 100 万次 357；肺部感染性疾病的癌症风险介于 238 和 668 之间，平均值为每 100 万次 369；慢性阻塞性肺病的癌症风险介于 130 和 393 之间，平均值为每 100 万次 244。结论优化患者在医学影像（尤其是 CT）中的剂量已成为一项义务。审查实践和程序以及推广辐射防护文化有助于更好地管理公众接受的辐射剂量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.