• Radiography, which includes general x-ray, bone densitometry (a technique that measures bone density), and mammography (a technique for examining the breast).
• Ultrasound, a procedure in which high energy sound waves are used to generate cross sectional and 3D images of soft tissue. Doppler ultrasound is capable of demonstrating blood flow and abnormalities associated with blood vessels.
• Computed Tomography (CT), a procedure in which a computer is able to analyse information received from x-ray beams to generate multiple cross-sectional and 3D images of a particular organ or area of the body including skeletal detail.
• Magnetic Resonance Imaging (MRI ), a procedure in which high strength magnetic fields are generated and used to create computer-processed cross sectional and 3D images of the body. MRI is extremely effective at creating images of soft tissues and organs especially the brain and spinal cord.
• Nuclear Medicine, a sub-specialty where the patient is given a low dose radiation isotope which is then detected by a gamma camera to indicate metabolic and biological functions within the body. Nuclear Medicine also includes Positron Emission Tomography (PET), a precise imaging procedure often used as a tool for cancer diagnosis, staging and monitoring.
• Interventional Radiology is a sub-speciality within the field of diagnostic imaging which uses various imaging techniques (such as x-ray, CT scans, MRI scans, and Ultrasound) to guide the placement of needles, catheters, drains and stents inside a patient to diagnose or treat an array of conditions.

Key people involved in diagnostic imaging include:

• A Radiologist is a medical specialist who has completed at least 12 years of training including dedicated post medical school training in diagnostic radiology. All Australian radiologists are credentialed by The Royal Australian and New Zealand College of Radiologists. They are responsible for interpreting diagnostic images of patients for medical diagnostic purposes.
• A Nuclear Physician is a medical specialist who has completed at least 12 years of training including dedicated post medical school training in Nuclear Medicine. All Australian nuclear physicians are credentialed by The Royal Australasian College of Physicians. They are responsible for interpreting diagnostic images of patients for medical diagnostic purposes.
• Radiographers and Sonographers are professionally trained technologists who have completed a University degree with the option of further post graduate study required for specific modalities such as Ultrasound. They work with the radiologist to operate the specialised equipment used to capture the diagnostic images of patients, used for medical diagnostic purposes.
• A Nuclear Medicine Technologist is a professionally trained technologist who has completed a University degree specialising in Nuclear Medicine. They work with the nuclear physicians to operate the specialised equipment used to capture the diagnostic images of patients used for medical diagnostic purposes.