Finding studies
Finding studies
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Lead
Northwestern University
With
PRIMARY OBJECTIVE: I. To determine if intraoperative use of the volumetric specimen imager (VSI) device during breast conservation surgery in women with invasive breast cancer and/or ductal carcinoma in situ (DCIS) allows surgeons to accurately identify margin status, such that =\<10% of patients have positive margins on final surgical pathology of the main specimen that were unidentified by VSI image interpretation for excision. SECONDARY OBJECTIVES: I. To calculate the sensitivity and specificity of VSI-directed shaves compared to the lumpectomy specimen pathology, when VSI device imaging is used intraoperatively to identify close tumor margins for directed cavity shaving in women with invasive breast cancer and/or DCIS who are undergoing breast conservation surgery. II. To calculate the length of time spent acquiring images with the VSI device, at the time of breast conservation surgery in women with invasive breast cancer and/or DCIS. III. To calculate the volume of tissue excised in the main lumpectomy specimen and the volume of tissue excised in VSI-directed cavity shaves, when excising tumor margins at the time of breast conservation surgery in women with invasive breast cancer and/or DCIS. OTHER PRE-SPECIFIED OBJECTIVES: I. To compare the estimated final positive margin rate for lumpectomy with VSI-directed cavity shaving to the historical final positive margin rate for lumpectomy with standard of care margin assessment, wherein 'positive margin' is defined per published guidelines. II. To compare the estimated final positive margin rate for lumpectomy with VSI-directed cavity shaving to the historical final positive margin rate for lumpectomy with standard of care margin assessment, wherein 'positive margin' is defined per institutional practice. III. To compare the estimated reoperation rate for patients undergoing lumpectomy with VSI-directed cavity shaving to the historical reoperation rate for patients who previously underwent lumpectomy with standard of care margin assessment. EXPLORATORY OBJECTIVE: I. To retrospectively evaluate the sensitivity and specificity of interpretation of shave margin VSI images to determine the feasibility of imaging shaved margins with VSI to further direct cavity shaves. OUTLINE: Patients undergo breast conservation surgery (lumpectomy or partial mastectomy) per standard care, and VSI intraoperative imaging is captured on the day of surgery. After completion of study, patients are followed up for 2 months.
Age
18–any
Sex
FEMALE
Healthy volunteers
Not accepted
