Abstract
Successful mammography screening has to keep the radiation exposure as low as reasonably achievable (ALARA) to obtain high quality images with sufficient diagnostic information. Quality control in screening units has to cover all parts of the imaging chain like X-ray generation, Bucky and image receptor, film processing and viewing conditions. A nominated radiographer of the screening unit should be responsible for consistency tests which have to be performed daily and weekly (see Table 10.1). More complex measurements have to be undertaken either at acceptance, yearly or every six months covering the X-ray source (focal spot size, source to image distance, alignment of X-ray field, radiation leakage), tube voltage reproducibility and beam quality (Half Value Layer), automatic exposure control (reproducibility and security cut-off), tube voltage compensation, dosimetry and exposure time (Perry et al. 2006). Performance indicators are listed in Table 10.2.
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Hellerhoff, K. et al. (2008). Oncological Disease. In: Reiser, M.F., van Kaick, G., Fink, C., Schoenberg, S.O. (eds) Screening and Preventive Diagnosis with Radiological Imaging. Medical Radiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-49831-5_10
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