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在11年的时间里,数字 (DR) 乳房学系统的患者剂量和压缩力趋势

Jaymanju Ramnarain¹, Lucy Cartwright², Jennifer Diffey³

¹Department of Medical Physics, Westmead Hospital, Westmead, NSW, Australia. Jaymanju.ramnarain@health.nsw.gov.au.

Physical and engineering sciences in medicine

|November 29, 2023

概括

数字造乳镜中患者剂量因技术转变而增加,而不是单个系统剂量增加. 压缩力下降,在患者反后显示出更一致的应用.

科学领域:

放射学和医学成像学医学成像学
辐射剂量计辐射剂量计
生物医学工程生物医学工程

背景情况:

查数字造乳镜 (DR) 系统对于早期发现乳腺癌至关重要.
审计对于监测患者剂量和系统性能至关重要.
了解乳房扫描参数的趋势对于质量保证至关重要.

研究的目的:

为了评估患者剂量和压缩力的趋势,随着时间的推移选数字造乳镜系统.
为了比较2011年至2022年期间进行的多次审计的结果.
调查影响乳房镜参数变化的因素.

主要方法:

匿名查性乳房学检查的分析 (CC和MLO的观点).
从医学数字成像和通信 (DICOM) 标题中提取曝光参数.
计算平均腺体剂量 (MGD) 并调查压缩力趋势.

主要成果:

每张图像的平均腺体剂量 (MGD) 从2011年的1.20mGy增加到2022年的2.11mGy.
平均压缩力从2011年的114N下降到2022年的100N,标准偏差减少.
增加的MGD归因于制造商和探测器技术的变化,而不是单个系统剂量升级.

结论:

虽然平均MGD增加了,但仍然低于国际诊断参考水平 (DRL).
压缩力降低表明患者舒适度提高,应用更一致.
为了保持高质量的查计划,需要不断监测乳房扫描参数.

关键词:

进行乳腺查.压缩力是一个压缩力.数字乳房造 mammography 数字乳房造 mammography 数字乳房造 mammography 数字乳房造 mammography 数字乳房造 mammography 数字乳房造腺体剂量的平均值患者剂量审计的患者剂量审计.

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