The branch or specialty of medicine that deals with the study and application of imaging technology like x-ray and radiation to diagnosing and treating disease........ The Department of Radiology is a highly specialized, full-service department which strives to meet all patient and clinician needs in diagnostic imaging and image-guided therapies.
You may call them simply doctors. But most doctors have extra expertise in one type of medicine or another. In fact, there are several hundred medical specialties and subspecialties. Here are the most common types of doctors you'll likely see.