Volumetric breast density, breast cancer subtypes and race.

e12067Background: Fully-automated volumetric methods for quantifying breast density have been shown to be reliable and take into account the 3-dimensional nature of breast tissue. BC is classified into several different subtypes which have varying associations with factors such as parity and race. The differences in volumetric breast density (VBD) among BC patients with different subtypes of BC have not been elucidated. We hypothesized that significant differences in VBD and the components that comprise VBD (i.e. fibroglandular volume (FGV) and total breast volume (BV)) occur in triple negative (TNBC) and hormone positive (HPBC) BC patients. Methods: We conducted a retrospective study of BC patients from Eastern North Carolina from 2006-2013. Age, race, body mass index (BMI), BC subtype and raw mammographic data for the contralateral cancer free breast were collected. Volpar (v1.5.12), an automated software, was used for estimating FGV, BV and VBD. Results: The average age, BMI, VBD, FGV and BV are summar...