PURPOSE: To determine the frequency with which stereotaxic core biopsy
of the breast obviated diagnostic surgical biopsy and to estimate the
savings in cost of diagnosis with this procedure. MATERIALS AND METHO
DS: Stereotaxic core biopsy of 182 nonpalpable, mammographically evide
nt lesions was performed, and data from clinical follow-up were obtain
ed. Savings in cost were assessed by using national Medicare reimburse
ment data and a relative value system based on national physician revi
ews (Relative Values for Physicians [RVP]). RESULTS: Stereotaxic core
biopsy replaced a surgical procedure in 140 of 182 patients. The mean
adjusted direct savings in cost per stereotaxic core biopsy were $893
(Medicare) or $1,498 (RVP). Use of stereotaxic core biopsy decreased t
he cost of diagnosis by 52% (RVP) or 55% (Medicare). CONCLUSION: Stere
otaxic core biopsy obviated surgical biopsy for most nonpalpable lesio
ns sampled, resulting in a greater than 50% reduction in biopsy costs.
If these results were generalizable to the national level, annual sav
ings would approach $200 million.