Radiology is the study of images of the human body. A Radiologist is a physician who has become a specialist in Radiology – a medical doctor who has taken additional training in the interpretation of medical images. This training usually takes 5–6 years after completing Medical School.
Although Radiology began with the use of X–Rays and photographic films, the modern Radiologist now has a variety of tools for “Taking pictures” of living patients. Many of these newer tools do not use any X–Rays, nor radiation of any kind – such as MR and Ultrasound.