Radiology is the science of dealing with X-rays and other high-energy radiation, especially the use of such radiation for the diagnosis and treatment of disease.
Diagnostic radiology is the field of medicine that uses imaging exams and procedures to diagnose a patient. In any form of medical care, diagnostic radiology plays an integral part in the diagnosis of disease or injury.
Interventional radiology, sometimes known as vascular and interventional radiology, is a medical specialty that provides minimally invasive image-guided diagnosis and treatment of disease.