The term 'imaged' is a six-letter solution to the crossword puzzle for the term 'used an MRI.' An MRI, or Magnetic Resonance Imaging, is a type of medical imaging technique used to create detailed images of the body's internal organs and structures. It is a non-invasive procedure that uses a powerful magnetic field and radio waves to produce detailed images of the body's organs and tissues. MRI is often used to diagnose and monitor a variety of medical conditions, including cancer, heart disease, and neurological disorders.