在伊朗塔布里兹建立牙科形束计算机断层扫描的诊断参考水平
Sina Mardfar1,2, Mona Fazel Ghaziyani3, Arman Saeedi Vahdat4
1Student Research Committee, Tabriz University of Medical Sciences, Golgasht St., Tabriz, East Azerbaijan Province, 5166616471, Iran.
Radiation protection dosimetry
|May 29, 2025
概括
这项研究确定了伊朗形束计算机断层扫描 (CBCT) 的诊断参考水平 (DRL),估计器官剂量和癌症风险,以提高医学成像中的患者安全.
科学领域:
- 医疗成像医学成像
- 辐射保护 辐射保护
背景情况:
- 圆束计算断层扫描 (CBCT) 对于医学成像至关重要,但涉及患者的辐射暴露.
- 确定诊断参考水平 (DRL) 对于优化辐射安全至关重要.
研究的目的:
- 确定伊朗塔布里兹地区CBCT扫描的典型DRL.
- 估计CBCT手术中器官中位数剂量和相关的癌症风险.
主要方法:
- 收集了196名接受常见CBCT程序的患者的数据.
- 使用VirtualDoseCT软件估计有效剂量和器官剂量.
- 使用BEIR VII报告计算了癌症发病率的终身可归因风险.
主要成果:
- 已建立的基于指示的DLR: 341 mGy.cm2 (植入物),387 mGy.cm2 (损伤),342 mGy.cm2 (鼻腔).
- 有效剂量为30μSv (男性) 和20μSv (女性).
- 唾液腺获得了最高的器官剂量;胸腺获得了最低的剂量.
结论:
- 在CBCT中尽量减少辐射暴露对于减少癌症和遗传风险至关重要.
- 量身定制的扫描协议和优化措施可以显著降低患者剂量.
- 结果为牙科和大面部成像实践提供了关于辐射剂量和DLRs的指导.
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