Complete internal audit of a mammography service in a reference institution for breast imaging

Radiologia Brasileira

Gustavo Machado Badan¹  Décio Roveda Júnior¹  Carlos Alberto Pecci Ferreira¹  Ozeas Alves De Noronha Junior¹ 

关键词: Breast cancer;    Mammographic screening;    BI-RADS;    Audit of mammography service;    Percutaneous biopsy;    Positive predictive value;    Câncer de mama;    Rastreamento mamográfico;    BI-RADS;    Auditoria em serviço de mamografia;    Biópsia percutânea;    Valor preditivo positivo;   

DOI  :  10.1590/S0100-39842014000200007

来源: SciELO

【 摘 要 】

Objective Undertaking of a complete audit of the service of mammography, as recommended by BI-RADS®, in a private reference institution for breast cancer diagnosis in the city of São Paulo, SP, Brazil, and comparison of results with those recommended by the literature. Materials and Methods Retrospective, analytical and cross-sectional study including 8,000 patients submitted to mammography in the period between April 2010 and March 2011, whose results were subjected to an internal audit. The patients were followed-up until December 2012. Results The radiological classification of 7,249 screening mammograms, according to BI-RADS, was the following: category 0 (1.43%), 1 (7.82%), 2 (80.76%), 3 (8.35%), 4 (1.46%), 5 (0.15%) and 6 (0.03%). The breast cancer detection ratio was 4.8 cases per 1,000 mammograms. Ductal carcinoma in situ was found in 22.8% of cases. Positive predictive values for categories 3, 4 and 5 were 1.3%, 41.3% and 100%, respectively. In the present study, the sensitivity of the method was 97.1% and specificity, 97.4%. Conclusion The complete internal audit of a service of mammography is essential to evaluate the quality of such service, which reflects on an early breast cancer detection and reduction of mortality rates.

【 授权许可】

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