Video: Molecular breast imaging: Finding what mammograms miss By Mayo Clinic Staff Share Facebook Twitter Print details On mammograms, cancer shows up as a white spot. But so does dense breast tissue. So how can health care providers tell the difference? Watch to learn how molecular breast imaging (MBI) works — and how it improves breast cancer detection for people with dense breast tissue. Show transcript Molecular breast imaging: Finding what mammograms miss Almost half of women have dense breast tissue. This can hide cancer during mammograms. Molecular Breast Imaging (MBI) uses gamma cameras to find what mammograms miss. Advanced technique. Simple procedure. Tracing substance is injected in the arm. Breast cancer absorbs tracing substance. A special camera shows tumors as bright areas. MBI plus mammogram finds 4 times more breast cancers than mammograms alone. Researchers studied over 2,500 women with dense breast tissue. 66% of breast cancers were missed by mammograms but caught by MBI. Better testing means confidence in results. From the experts at Mayo Clinic. VID-20538287