Maccia C, Renaud R, Castellano S, Schaffer P, Wahl R, Haehnel P, Dale G, Gairard B
Centre d'Assurance de Qualité des Applications Technologiques dans le domaine de la Santé, Cachan, France.
Br J Radiol. 1994 Apr;67(796):371-83. doi: 10.1259/0007-1285-67-796-371.
The ultimate effectiveness of any mass screening campaign is directly related to strict compliance with certain rules and technical protocols designed for radiological installations. Concerning radiological screening, the primary technical objective is to ensure reproducibly high quality images at low radiation dose to the patient. This paper describes the methodology followed for the implementation of a quality control (QC) programme of 48 mammography installations used within the context of the breast cancer screening campaign in the Bas-Rhin region of eastern France. In order to demonstrate the efficacy of such a programme, results of QC tests and procedures relating to each element of the radiological imaging chain are presented and compared for four control visits carried out at 6 month intervals over a period of 2 years. A reduction of 50% (from 16 mGy to 7.5 mGy) of breast entrance doses (normalized to a breast thickness of 4.5 cm) and a significant improvement of detectability of high contrast details are discussed. The importance of encouraging an extension of a similar process to the other screening experiments currently underway in France is emphasized.
任何大规模筛查活动的最终效果都直接与严格遵守为放射设备制定的某些规则和技术规程相关。关于放射筛查，主要技术目标是在低辐射剂量下确保为患者提供可重复的高质量图像。本文描述了在法国东部下莱茵地区乳腺癌筛查活动中，对48台乳腺摄影设备实施质量控制（QC）计划所采用的方法。为了证明该计划的有效性，展示并比较了在两年时间里每隔6个月进行的4次控制访问中，与放射成像链各要素相关的QC测试和程序结果。讨论了乳腺入口剂量（归一化为4.5厘米乳腺厚度）降低50%（从16毫戈瑞降至7.5毫戈瑞）以及高对比度细节可检测性的显著提高。强调了鼓励将类似过程扩展到法国目前正在进行的其他筛查实验的重要性。
