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Congress: ECR25
Poster Number: C-25653
Type: Poster: EPOS Radiologist (educational)
Authorblock: M. Pekovic, P. Jovanovic; Obrenovac/RS
Disclosures:
Milos Pekovic: Nothing to disclose
Predrag Jovanovic: Nothing to disclose
Keywords: Breast, Oncology, Mammography, Ultrasound, Screening, Education and training
Learning objectives To highlight the advantages of Digital Breast Tomosynthesis (DBT) over full-field digital mammography (FFDM) in reducing false positive and false negative findings To emphasize the advantages of DBT in the detection of architectural distortions and small invasive tumors, even in dense breasts To emphasize the role of DBT in the recall rate reduction [fig 1]
Read more Background DBT is a breast imaging technique that allows a volumetric reconstruction of the entire breast from a series of two-dimensional projections acquired from an X-ray tube while moving around the breast at various angles. 50° Wide-Angle Tomosynthesis overcomes diagnostic challenges like overlapping tissue with the highest depth resolution: [fig 2] DBT enables better detection of expansive lesions and provides better morphological analysis of tumor masses and architectural distortions: [fig 3] DBT effectively eliminates one of the limitations of the two-dimensional mammograms—masking of lesions caused...
Read more Findings and procedure details During the analyzed period, 101 women were invited for supplementary diagnostics (7%). In 51 women, only ultrasound (US) examinations were performed, and BI-RADS 2 or suspicious for malignancy findings obtained. 1 woman had a highly suspicious mass detected in the other breast. Case 1: Screening mammogram (2D) of a 65-year-old-woman, shows low-intensity mass posterior in the outer quarter of the right breast. Mammogram with tomosynthesis very clearly shows the spiculated mass. Ultrasound reveals hypoechoic irregular mass with infiltrative features in the...
Read more Conclusion From the obtained results it can be concluded that the introduction of DBT into the screening program would lead to a reduction of false positive and false negative findings and significantly reduce the recall rate. Furthermore, by using only synthetic 2D images, obtained by fusion from tomo slices, without performing FFDM, or by performing one-view breast tomosynthesis, the average glandular dose of radiation could also be reduced.
Read more References 1. ACR BI-RADS Atlas, Breast Imaging Reporting and Data System. Reston, VA, American College of Radiology; 5th edition 2013.2. Maldera et al. (2016): Digital breast tomosynthesis: Dose and image quality assessment. Physica Medica, pp. 1-12.; Marshall N.W. and Bosmans H. (2012): Measurements of system sharpness for two digital breast tomosynthesissystems. Phys. Med. Biol. 57, pp. 7629-7650.; Rodríguez-Ruiz A. et al. (2016): Evaluation of the technical performance of three different commercial digital breast tomosynthesis systems in the clinical environment. Physica Medica...
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