Earlier we only had x-ray method of detecting a disease but since last 10-15 years we have other methods like ultrasound, and other imaging methods. Imaging simply means creating an image of the insides of your body and radiology is the use of radiation for different types of “imaging,” including X-rays and radarscopes.
When doctors take the help of radiation for various types of imaging then it is called the science of radiology. Actually there are many other names for it…