[Film-screen combinations for mammography].

Area of Science:

• Medical Imaging Physics
• Radiology
• Quality Assurance in Healthcare

Context:

• Increasing importance of mammography for early breast cancer detection through screening programs.
• Existing German guidelines (Bundesärztekammer, Röntgenverordnung, DIN 6868) and European quality criteria show inconsistencies.
• Mammography demands high image quality, necessitating precise standardization.

Purpose:

• To critically evaluate the consistency of physical imaging system parameters in current mammography quality assurance standards.
• To identify discrepancies between German and European guidelines regarding dose switch-off values, image receptor unsharpness, and noise.
• To highlight the inadequate harmonization of medical quality requirements and radiographic guidelines concerning visual resolution capacity and contrast.

Summary:

• Analysis reveals significant inconsistencies in tolerances and guide values for physical variables across mammography standards.
• Specific issues include varying dose switch-off values and insufficient guidance on the impact of image receptor unsharpness and noise.
• Contrast, a critical parameter, is largely unaddressed in existing quality assurance documents.

Impact:

• Proposes detailed discussion of identified criticisms to improve mammography image quality.
• Aims to provide recommendations for more precise specifications and better delineation of physical image quality parameters.
• Contributes to enhancing the reliability and effectiveness of breast cancer screening programs through standardized, high-quality mammography.