Object and person tracking systems to enable extremity dosimetry in nuclear medicine using computational methods.

IF 1.4 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Journal of Radiological Protection Pub Date : 2024-06-25 DOI:10.1088/1361-6498/ad53d5
Daniel Santiago Rondón, Pasquale Lombardo, Mahmoud Abdelrahman, Lara Struelens, Filip Vanhavere, Niki Bergans
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Abstract

Nuclear medicine (NM) professionals are potentially exposed to high doses of ionising radiation, particularly in the skin of the hands. Ring dosimeters are used by the workers to ensure extremity doses are kept below the legal limits. However, ring dosimeters are often susceptible to large uncertainties, so it is difficult to ensure a correct measurement using the traditional occupational monitoring methods. An alternative solution is to calculate the absorbed dose by using Monte Carlo simulations. This method could reduce the uncertainty in dose calculation if the exact positions of the worker and the radiation source are represented in these simulations. In this study we present a set of computer vision and artificial intelligence algorithms that allow us to track the exact position of unshielded syringes and the hands of NM workers. We showcase a possible hardware configuration to acquire the necessary input data for the algorithms. And finally, we assess the tracking confidence of our software. The tracking accuracy achieved for the syringe detection was 57% and for the hand detection 98%.

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利用计算方法实现核医学中四肢剂量测定的物体和人员跟踪系统。
核医学(NM)专业人员可能会受到高剂量的电离辐射,尤其是手部皮肤。工作人员使用环形剂量计来确保肢体剂量保持在法定限值以下。然而,环形剂量计往往容易受到较大不确定性的影响,因此使用传统的职业监测方法很难确保测量的正确性。另一种解决方案是使用蒙特卡罗(MC)模拟计算吸收剂量。如果能在模拟中体现工人和辐射源的确切位置,这种方法就能减少剂量计算的不确定性。在本研究中,我们介绍了一套计算机视觉和人工智能(AI)算法,通过这些算法,我们可以跟踪无屏蔽注射器和 NM 工作人员双手的准确位置。我们展示了一种可能的硬件配置,以获取算法所需的输入数据。最后,我们评估了软件的跟踪可信度。注射器检测的跟踪准确率为 57%,手部检测的跟踪准确率为 98%。
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
Journal of Radiological Protection
Journal of Radiological Protection 环境科学-公共卫生、环境卫生与职业卫生
CiteScore
2.60
自引率
26.70%
发文量
137
审稿时长
18-36 weeks
期刊介绍: Journal of Radiological Protection publishes articles on all aspects of radiological protection, including non-ionising as well as ionising radiations. Fields of interest range from research, development and theory to operational matters, education and training. The very wide spectrum of its topics includes: dosimetry, instrument development, specialized measuring techniques, epidemiology, biological effects (in vivo and in vitro) and risk and environmental impact assessments. The journal encourages publication of data and code as well as results.
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