Lorad selenia units

METEOR recorded the patients who underwent 2D and DBT as two different patient cohorts. The mammograms were performed using Hologic Lorad Selenia units for 2D, while Hologic Selenia Dimensions and GE Senographe Essential Tomosynthesis units were used for DBT at the Breast Centers throughout our hospital system. The following information was extracted from METEOR: patient demographics including age, gender, race; modality used (2D vs. DBT); presence of prior mammogram; final BI-RADS assessment category; biopsy type: image-guided core needle or surgical biopsy; pathology results within three months after the mammogram; tumor staging; and hormone receptor and growth-promoting protein expression, i.e., estrogen receptor (ER), progesterone receptor (PR), and growth-promoting protein (HER2) status. Available data on tumor staging as well as hormone receptor and growth-promoting protein status was limited, as not everyone had these records. Biopsy outcomes, i.e., benign or malignant lesions, determined by a review of pathology reports, served as cancer diagnosis status. There was no direct mammogram evaluation and the 2D and DBT cohorts were not intraindividual matched.