Evaluation of Mean Glandular Dose From Digital Mammography Exams at Hamad Medical Corporation Qatar and Compared with International Guidance Levels
O Taha, A Al Attar, I Duhaini*, H Al Naemi, Hamad Medical Corporation, Doha, dohaSU-E-P-20 Sunday 3:00PM - 6:00PM Room: Exhibit Hall
Purpose: The primary objective of this study was to measure the mean glandular dose (MGD) from craniocaudal (CC) and mediolateral oblique (MLO) views from mammography patients in Hamad Medical Corporation (HMC) and to compare them with the international guidance levels.
Methods:All patients` data was taken from two Selenia digital mammography units for 18 months period. Quality control was implemented for two the mammography machines and the correction actions have been done for the image quality evaluation with rejected film analysis.
The total number of collected patient data was 4085 mammography exams which considered around 93% of the overall mammography procedures done in Qatar during that period.
Results:Based on the IAEA selection criteria of breast thickness between 2-7 cm and kV machine value from 26 to 33 kV, only 3280 mammography procedures satisfies the above criteria and are analysed accordingly (National Centre for Cancer Care & Research (NCCCR) 949 and Hamad General Hospital- HGH- 2331 exposures).
Conclusion:Referring to the limiting dose values in the European guidelines, the results from the two mammography units showed that 94.5% and 99.7% of the mean glandular doses are acceptable from NCCCR and HGH respectively.