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• W2740795502 abstract "OBJETIVO: A proposta deste estudo foi avaliar a acuracia da classificacao BI-RADS® na mamografia. Ospontos secundarios foram descrever a frequencia de apresentacao dos diferentes achados mamograficos eavaliar a concordância entre observadores. MATERIAIS E METODOS: Os exames de 115 pacientes, encami-nhados para core biopsy, foram reavaliados independentemente por dois medicos especialistas, cegados,utilizando a recomendacao do BI-RADS. Posteriormente, os exames foram comparados com a histologia. Aacuracia da classificacao BI-RADS na mamografia foi avaliada. A concordância entre os medicos foi calcu-lada pela estatistica kappa (κ) de Cohen e as diferencas nos grupos de comparacao foram analisadas comteste qui-quadrado. RESULTADOS: Esta pesquisa demonstrou que a acuracia mamografica oscilou de 75%a 62% na diferenciacao entre lesoes benignas de malignas com o uso do BI-RADS. Houve importante con-cordância na descricao das margens dos nodulos (κ = 0,66). Baixa concordância foi identificada na descri-cao dos contornos (formas) dos nodulos ( κ = 0,40) e na descricao das calcificacoes, tanto em relacao a suadistribuicao (κ = 0,24) como tambem em relacao a morfologia (κ = 0,36). CONCLUSAO: O presente estudodemonstrou que o metodo e acurado na diferenciacao de lesoes benignas de malignas. A concordância foifraca na analise das calcificacoes quanto a morfologia e distribuicao, no entanto, identificou-se elevacaoprogressiva dos valores preditivos positivos nas subcategorias 4.Unitermos: Neoplasia da mama; Mamografia; Histologia; Acuracia; BI-RADS; Ultrassonografia.OBJECTIVE: The present study was aimed at evaluating the BI-RADS® classification accuracy in mammography.Additionally, the frequency of different findings was described and the interobserver agreement was evaluated.MATERIALS AND METHODS: Mammographic images of 115 patients were independently and blindly reviewedby two specialists in compliance with BI-RADS recommendations, and later compared with histological data.The BI-RADS accuracy in mammography was evaluated. The interobserver agreement was analyzed withthe Cohen’s kappa (κ) test, and the differences between groups were evaluated with the chi-squared test.RESULTS: The present study demonstrated that the mammographic accuracy ranged from 75% to 62% inthe differentiation between benign and malignant lesions with the utilization of the BI-RADS classification.Statistically significant interobserver agreement was observed in the description of masses margins (κ =0.66). A low agreement rate was identified in the description of masses borders (shape) (κ = 0.40) andcalcifications, both in relation to their distribution (κ = 0.24) and morphology (κ = 0.36). CONCLUSION:The present study demonstrated the BI-RADS accuracy in the differentiation between benign and malignantlesions. The interobserver agreement was poor in the analysis of calcifications morphology and distribution,but a progressive increase in the positive predictive values was observed in the subcategory 4.Keywords: Breast cancer; Mammography; Histopathology; Accuracy; BI-RADS; Ultrasonography." @default.
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• W2740795502 date "2009-01-01" @default.
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• W2740795502 title "Acurácia dos achados ultrassonográficos do câncer de mama: correlação da classificação BI-RADS® e achados histológicos* Accuracy of sonographic findings in breast cancer: correlation between BI-RADS® categories and histological findings" @default.
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