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Congress: ECR25
Poster Number: ESI-24688
Type: EuroSafe Imaging Poster
DOI: 10.26044/ecr2025/ESI-24688
Authorblock: T. R. Visanuyanont1, E. Hillberg2, T. Moberg2; 1Jonkoping/SE, 2Uppsala/SE
Disclosures:
Tanny Ruangmathuros Visanuyanont: Nothing to disclose
Emanuel Hillberg: Nothing to disclose
Tomas Moberg: Nothing to disclose
Keywords: Breast, Mammography, Radiation safety, Quality assurance
Purpose or learning objective The daily mammography screening program operates under high pressure, handling numerous patients, mostly healthy women.While internal detector calibration occurs at startup, an external, quick, and reliable daily quality control (QC) is crucial to ensure equipment performance before screening [1].This work highlights the five years experience of implementation and improvement of Dosstat QC software [2] with automatic homogeneity analysis for mammography at a Regional hospital in Jönköping County, Sweden. 
Read more Methods or background Daily QC is performed using a 40 mm plexiglass block covered the detector area (Figure 1). [fig 1] The unprocessed image is automatically analyzed by DOSESTAT QC software, which examines exposure parameters, mean pixel value (MV), signal-to-noise ratio (SNR), and standard deviation (SD). The results and feedback appear in the user interface almost immediately. All data preserved on the medical physicist interface.For the analysis, the software divides the image into five sections: Top-Left, Top-Right, Bottom-Left, Bottom-Right, and the Breast area which covers the...
Read more Results or findings The improved Dosestat QC has yielded significant benefits: Early detection of detector errors with precise localization, leading to timely recalibration or detector replacement before clinical use. Identification of detector changes over time, enabling proactive maintenance and equipment management. Financial savings through investment in detector insurance for the entire mammography department, based on the insights gained from the QC process. Two case studies demonstrate the effectiveness of the improved QC system: Detection of a dead pixel at the top edge - Top-Left section, of the homogenius...
Read more Conclusion The improved automated Dosestat QC has significantly enhanced mammography safety and efficiency: Increased patient safety through early detection of equipment issues Enabled timely preventive actions and maintenance Boosted staff confidence in equipment readiness Provided immediate alerts for QC failures via email to medical physicists Facilitated quick decision-making on equipment usability Beyond daily QC, Dosestat QC has proven valuable as a supplement for: Periodic control Quick control after preventive maintenance, upgrades, and replacement of X-ray parts Trend analysis during annual control This implementation demonstrates the significant impact of advanced QC methods...
Read more References IMPLEMENTATION OF A REMOTE AND AUTOMATED QUALITY CONTROL PROGRAMME FOR RADIOGRAPHY AND MAMMOGRAPHY EQUIPMENT, IAEA Human Health Series No. 39, International Atomic Eergy Agency Vienna, 2021 AUTOMATED QC FOR INTERVENTIONAL SYSTEMS AND MAMMOGRAPHY SYSTEMS, T. Visanuyanont et al, Radiation Protection Dosimetry (2021), pp. 1–8, doi:10.1093/rpd/ncab064
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