“Data shows that using 3D tomography in the operating room can minimize the likelihood that a re-excision will be necessary following a lumpectomy because it enables the surgeon to have a higher resolution of the tumor margins in the operating room, which standard specimen radiographs often miss.”

https://sharsheret.org/20-of-women-getting-lumpectomies-need-a-second-surgery-but-this-risk-can-be-lowered/