Congress:
EuroSafe Imaging 2019
Keywords:
Action 4 - Dose management systems, Breast, Radioprotection / Radiation dose, Radiation physics, Mammography, Dosimetry, Screening, Dosimetric comparison
Authors:
M. Verius, P. Torbica, W. Jaschke
DOI:
10.26044/esi2019/ESI-0100
Conclusion and recommendations
Results:
Average patient age was 61.0 (48.9 – 73.1 years).
The median glandular dose in the period 2014-2016 for 2 views and both sides and both scanner were 5,2mGy,
5.6mGy for Siemens scanner alone and 4.4 for GE.
The median glandular dose in the period 2017-2018 for 2 views,
both sides and both scanner were 3,67mGy (2.81 – 4.62),
3.57Gy (2.77 – 4.46) for Siemens scanner alone and 4.95mGy (4.08-6.09) for GE repectively (Table 1).
Conclusions:
A significant glandular dose reduction of -36.3% can be seen for the Siemens Inspiration scanner before and after DBT with Prime function.
After upgrading the GE Senograph Essential to tomosynthesis function a dose increase of 12.5% for regular mammographic examinations (DM) was detected (Table 2).
Comparing the glandular dose (both Scanner with tomosynthesis function) of digital mammographic examinations (DM) vs.
digital breast tomographic examinations and digital mammographic examinations (DM+DBT) we found an increase of the median of 51.9% for Siemens and 3.15% for GE respectively (Table3).
Abbreviations: DM (digital mammographic examinations),
DBT (digital breast tomography),
CC Craniocaudal,
MLO mediolateral oblique,
FFDM full-field digital mammography