Definitions
Diagnostic radiology deals with the use of X-rays and radioactive substances to diagnose diseases. Structures inside the body can be viewed to diagnose the cause of symptoms; monitor how your body is
responding to a treatment; and screen for different illnesses, such as breast cancer or heart disease. The most common types of diagnostic radiology include: X-rays; ultrasound; computed tomography (CT), also known as computerised axial tomography (CAT scan); CT angiography (examining the heart and associated blood vessels); magnetic resonance imaging (MRI); magnetic resonance angiography (MRA); mammography (examining breasts); nuclear medicine (with such tests as a bone scan, thyroid scan, and thallium cardiac stress test); and positron emission tomography (PET scan).more
