Comprehensive organ-specific radiation dose mapping in coronary angiography using the Alderson Rando phantom: An experimental approach to optimize patient safety

IF 2.8 3区 物理与天体物理 Q3 CHEMISTRY, PHYSICAL
Duygu Tunçman Kayaokay , Fahrettin Fatih Kesmezacar , Nami Yeyin , Songül Çavdar Karaçam , Osman Günay , Turgut Karabağ , Mustafa Demir , Bashar Issa , H.O. Tekin , Ghada ALMisned
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Abstract

This study aimed to evaluate radiation dose distribution to critical organs, specifically the lungs, heart, and breasts, during coronary angiography using the Alderson Rando phantom. Thermoluminescent dosimeters (TLDs) were positioned at different anatomical sites within the Alderson Rando ® phantom to measure radiation exposure in a controlled simulation replicating clinical coronary angiography conditions. Our findings indicated significant variability in lung doses, with the highest exposure observed in middle lung regions due to direct alignment with the primary X-ray beam path. Cardiac dose measurements showed a relatively uniform distribution, with elevated exposure in the basal and atrial regions, reflecting their proximity to the central beam. In the breast tissue, a pronounced dose asymmetry was noted, with the right breast, particularly lateral and posterior regions, receiving substantially higher radiation due to its closer positioning to the X-ray source and increased scatter. According to results, there are different levels of radiation exposure across organs and anatomical regions during coronary angiography. It can be concluded that implementing targeted dose-reduction strategies, such as shielding and optimized angulation, is essential to protect sensitive organs, with personalized imaging protocols recommended to enhance patient safety and minimize cumulative radiation risks.
在冠状动脉造影中使用Alderson随机模体进行全面的器官特异性辐射剂量定位:优化患者安全性的实验方法
本研究旨在评估使用Alderson随机模体冠状动脉造影时关键器官,特别是肺、心脏和乳房的辐射剂量分布。热释光剂量计(tld)被放置在Alderson Rando®幻体内的不同解剖部位,以测量在受控模拟中复制临床冠状动脉造影条件下的辐射暴露。我们的研究结果表明,肺部剂量有显著的可变性,由于与主要x射线束路径直接对齐,在肺部中部观察到最高的暴露。心脏剂量测量显示出相对均匀的分布,基底区和心房区暴露量升高,反映出它们靠近中央束。在乳房组织中,明显的剂量不对称被注意到,右乳房,特别是侧面和后部区域,由于其靠近x射线源的位置和增加的散射,接受了更高的辐射。结果表明,冠状动脉造影中不同器官和解剖区域的辐射暴露程度不同。可以得出结论,实施有针对性的剂量减少策略,如屏蔽和优化角度,对于保护敏感器官至关重要,建议采用个性化成像方案,以增强患者安全并最大限度地减少累积辐射风险。
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来源期刊
Radiation Physics and Chemistry
Radiation Physics and Chemistry 化学-核科学技术
CiteScore
5.60
自引率
17.20%
发文量
574
审稿时长
12 weeks
期刊介绍: Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.
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