Audit of diagnostic mammography examinations at the Centro de Diagnóstico Mamario de la Asociación Española (Center for Breast Diagnosis of the Asociación Española)
Keywords:
BREAST NEOPLASMS, MAMMOGRAPHY, AUDITAbstract
Objective: to evaluate the performance of diagnostic mammography at the "Centro de Diagnóstico Mamario (CENDIMA) of the Asociación Española".
Method: we calculated the positive predictive value, cancer detection rate, cancer minimum percentage, average size of the invading cancer, negative axilla percentage and percentages for stages 0 and I.
Results were compared to reference parameters provided by the Breast Cancer Surveillance Consortium (BCSC).
Results: positive predictive value of all positive mammographies BI-RADS 4 and 5 was 62% (over P90 according to the BCSC database).
Positive predictive value of all biopsies actually performed was 55% (P75 to P90). Cancer detection rate was 9 /1,000 (< P10).
Minimum percentage was 36% (P25 to P50).
130 invasive cancer cases were diagnosed, average size was 10 mm (P25 a P50).
Negative axilla percentage was 72% (P50 to P75).
Stage 0 and stage I cancer percentage was 61% (P50).
Conclusions: parameters found indicate CENDIMA’s performance, in terms of breast cancer, agrees with most centers for breast diagnosis in the United States.
Cancer detection rate is low for a diagnosis center, due to the fact that the population studied is mainly comprised of asymptomatic women.
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