CCDs Have Been Adapted to Detect Small Masses in Breast Tissue
Charge-coupled devices (CCDs) used in the Hubble Space Telescope to convert a distant star's light directly into digital images have been adapted to improve existing methods for physicians to detect small masses in breast tissue. Finding the exact location allows doctors to analyze the tissue by stereotactic biopsy, which requires a needle rather than surgery.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20020080116_2002131836.pdf →