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What is a Nuclear Medicine VQ Scan? A ventilation–perfusion (VQ) scan is a nuclear medicine scan that uses radioactive material (radiopharmaceutical) to examine airflow (ventilation) and blood flow (perfusion) in the lungs. The aim of the scan is to look for evidence of any blood clot in the lungs, called pulmonary embolism (PE). A VQ scan is carried out in two parts.…
What is a coronary artery calcium scoring? A coronary artery calcium score is a measurement of the amount of calcium in the walls of the arteries that supply the heart muscle. It is measured by taking a special computed tomography (CT) scan of the heart. The scan shows the amount of hardening of the artery wall (the disease that causes...
A nuclear medicine renal scan is used to assess blood flow, function and drainage of the kidneys. The radiopharmaceutical is then injected into a vein and enters the kidneys. The radioactive component of the radiopharmaceutical emits gamma rays, which allows us to take pictures of your kidney using gamma cameras. The scan involves a small amount of radiation exposure, but...
What is magnetic resonance imaging (MRI)? Magnetic resonance imaging (MRI) is a scanning procedure that uses strong magnets and radiofrequency pulses to generate signals from the body. These signals are detected by a radio antenna and processed by a computer to create images (or pictures) of the inside of your body. The MRI scanner is generally shaped like a large,...
What is a bursal injection? A bursa is a soft tissue space between two structures, such as bone, muscle, tendon and skin, which allows the structures to slide over one another. Soft tissue, such as muscle, fat and skin, connects and surrounds the bones and internal organs of the body. The most commonly injected bursas are around the shoulder (subacromial...
What is an 18-20 week screening pregnancy ultrasound? An 18–20 week pregnancy screening ultrasound is part of the routine care during pregnancy. Screening is carried out at this stage in the pregnancy because the foetus (unborn baby) is big enough for its body structure and development to be assessed. It also provides additional information such as; the number of foetuses,...
What is an arthrogram? An arthrogram is an X-ray image or picture of the inside of a joint (e.g. shoulder, knee, wrist, ankle) after a contrast medium (sometimes referred to as a contrast agent or “dye”) is injected into the joint. An arthrogram provides a clear image of the soft tissue in the joint (e.g. ligaments and cartilage) so that...
What is a bone scan? A nuclear medicine bone scan shows the effects of injury or disease (such as cancer) or infection on the bones. A nuclear medicine bone scan also shows whether there has been any improvement or deterioration in a bone abnormality after treatment. A radioactive material (radiopharmaceutical) is injected into a vein, attaches to the bones and...
What is a transvaginal ultrasound? Transvaginal ultrasound is an examination of the female pelvis. It helps to see if there is any abnormality in the uterus (womb), cervix (the neck of the womb), endometrium (lining of the womb), fallopian tubes, ovaries, bladder or the pelvic cavity. It looks at the pelvic organs from inside the vagina using a special smooth,...
What is an ultrasound? Ultrasound is the term used for high-frequency soundwaves. Ultrasound examinations use these sound waves to produce a picture or image onto a screen showing the inside of your body. An ultrasound is carried out by a trained health professional (sonographer, radiologist or sonologist) using a smooth, hand-held device called a transducer that they move across the...
Interventional neuroradiology is a subspecialty of clinical radiology which involves using medical imaging tests in diagnosing and treating diseases of the central nervous system, head, neck and spine. Interventional neuroradiologists use cutting edge imaging and guidance techniques to guide catheters (very fine plastic tubes) and other tiny instruments around…
Health professional informationMusculoskeletal imaging is a subspecialty of diagnostic radiology which involves ordering and interpreting medical images of bones, joints and associated soft tissues and diagnosing injuries and disease. Musculoskeletal imaging radiologists use: ● X-rays/plain radiography; ● Fluoroscopy (a continuous X-ray that creates moving images of the functioning…
Health professional informationEmergency radiology is a subspecialty of diagnostic radiology. Emergency diagnostic radiologists are an integral part of a hospital’s emergency team and are directly involved in helping diagnose trauma patients. Emergency radiologists use a range of imaging techniques to diagnose: Body trauma Heart and lung (thoracic) trauma and conditions Injuries…
Health professional informationCardiac imaging is a subspecialty of diagnostic radiology. A cardiac radiologist supervises or performs and then interprets medical images to diagnose diseases of the heart such as heart disease, leaky heart valves and defects in the size and shape of the heart. A cardiac radiologist uses imaging techniques such as X-rays, ultrasound (echocardiograms), CT (computed…
Health professional informationBreast imaging is a subspecialty of diagnostic radiology. It involves a range of imaging procedures. Screening mammography is used to detect breast cancer via a low-dose X-ray before any symptoms are evident. This allows for early treatment and intervention. In Australia free breast screening is available to women aged 50-74 every two years. Diagnostic mammography…
Health professional informationAbdominal imaging is a subspecialty of diagnostic radiology which involves imaging the abdomen and pelvis, including the genitals, urinary organs and gastrointestinal tract, to diagnose and plan treatment for disease. Abdominal imaging radiologists use imaging to diagnose diseases of the: liver, bladder and kidneys prostate and uterus pancreas colon gallbladder…
Health professional informationWhat is an angioplasty and stent insertion? Angioplasty and stent insertion is used to treat narrowing in an artery. Angioplasty uses a small, sausage-shaped balloon to stretch the artery open and improve blood flow. The stent is a small, metal cylinder that acts like a small scaffold to hold the artery permanently open. Angioplasty is the name of the procedure...
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