Warren B. Gefter, MD

Imaging in medicine dates its origin to 1895, when Roentgen discovered the x-ray. This exciting and novel technology opened an unprecedented era in medicine, which continued through the 20th century and remains a major element of the day-to-day practice of radiology. Limited, modest efforts made during the mid-20th century to employ tomographic methodologies eventually led to the introduction of x-ray CT by Sir Godfrey Hounsfield in 1973.