2014, Number 1
Predictive value of malignancy of BIRADS category 4 and 5 solid nodules by qualitative elastography
Franco – Hervert A, Onofre – Castillo JJ, Putz – Botello MD, Mancilla – Serrato AA
Language: Spanish
References: 10
Page: 23-29
PDF size: 404.04 Kb.
ABSTRACT
Objective. Evaluate the capacity of ultrasound qualitative breast elastography to predict malignancy of solid nodules, classified as BI-RADS category 4 and 5, with subsequent recommendation of biopsy.Material and method. We reviewed, in the PACS system, elastograph images (color map based on the Ueno scale) from patients who underwent biopsy of BI-RADS 4 and 5 lesions at the Hospital Christus Muguerza Diagnostic Breast Imaging Center and had histopathological analysis at that hospital.
Results. Sixty-three patients were included and biopsies of 68 solid nodules were taken. In the statistical analysis we obtained, for elastography, sensitivity to BI-RADS 4 and 5 malignant solid nodules of 87%; specificity of 70%, a positive predictive value of 71%, and a negative predictive value of 86%; the overall accuracy was 77% and the confidence interval 95%.
Conclusion. Because the positive and negative predictive values are no higher than those reported in the international specialized literature we cannot fail to consider other diagnostic methods such as mammogram and mode B ultrasound in making the decision to perform biopsies; elastography is only an additional tool with advantages and disadvantages.
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