Efficacy of Digital Breast Tomosynthesis + Standard 2- Dimensional Mammography in Breast Cancer

Efficacy of Digital Breast Tomosynthesis (DBT) in Addition to Standard 2- Dimensional Mammography in Evaluating Extent of Disease in Newly Diagnosed Breast Cancer Patients

The purpose of this study is to determine if a 3-dimensional mammogram (DBT) may provide additional information to evaluate the extent of disease and additional findings that would aid in staging a new breast cancer patient. This would impact surgical planning and improve patient outcomes.

Primary Objective:

The primary objective of the study is to measure the frequency with which DBT alters the surgical plan to mastectomy versus lumpectomy. Only positive findings, like an additional site of cancer or DCIS, will be taken into account when estimating the frequency of changes to surgical management.

Secondary objectives:

1. To measure the frequency and nature of additional findings like atypical pathology (Atypical ductal/ lobular hyperplasia, papilloma, Lobular carcinoma in situ (LCIS) , requiring surgical intervention).
2. To identify variables on 2D (e.g. dense breasts, architectural distortions, non calcified masses) that might predict which patients would benefit from DBT.
3. To measure the proportion of patients undergoing additional work-up following the DBT, and the subset of these patients with benign findings (i.e. False Positives).

Inclusion Criteria:

• New diagnosis of breast cancer
• New diagnosis if a previous breast cancer patient with negative surgical margins
• Patients willing to sign a written informed consent form

Exclusion Criteria:

• High risk benign lesions as the primary pathology diagnosis