Abstract
Results of a dose survey carried out at BreastCheck, the Irish Breast Screening Program are presented. The survey includes 12,529 images acquired with GE Essential, Hologic Selenia and Sectra MDM digital mammography systems.
The average MGD per examination was 2.74±0.04mGy, the average compressed breast thickness was 61.4±0.53mm and the average compression force was 10.9±0.7daN. Results for the three different systems are reported and the distribution of the most utilised target/filter combinations are also included.
The results from this survey of a completely digital screening programme reveal a complete reversal of trend in target/filter selection with Mo/Mo usage at 0.3% and Rh/Rh selection at 36.6%. Indeed, the predominant use of novel target/filter combinations is evident from this survey.
A DRL value of 1.75mGy has been established by calculating the 95th percentile of the average MGD for compressed breast thicknesses ranging from 55mm–65mm.
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Baldelli, P., McCullagh, J.B., Phelan, N., Flanagan, F. (2010). Results of Comprehensive Dose Survey for Mammography. In: Martí, J., Oliver, A., Freixenet, J., Martí, R. (eds) Digital Mammography. IWDM 2010. Lecture Notes in Computer Science, vol 6136. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13666-5_10
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DOI: https://doi.org/10.1007/978-3-642-13666-5_10
Publisher Name: Springer, Berlin, Heidelberg
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