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Transarterial Chemoembolisation (TACE)

What is a transarterial chemoembolisation? Transarterial chemoembolisation (TACE) is a targeted treatment that treats cancers (tumours) in the liver and other cancers that have spread to the liver (metastases). Other options to completely treat these cancers include surgery to remove the tumours, ablation of the cancer (directly damaging it with heat, freezing or electrifying, via a needle through the skin)...


Radiation Oncology

Radiation oncology  uses radiation (radiation therapy) to treat cancer and other non-malignant diseases. It is a safe and effective treatment for many cancers, with radiation therapy involved in the successful treatment of 40% of all patients cured of cancer worldwide. Radiation Therapy Radiation therapy  can be applied to cancers anywhere in the body. It kills…

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Angiography

What is angiography? Angiography is the X-ray imaging of blood vessels using contrast agents injected into the bloodstream through a thin plastic tube (catheter) that is placed directly in the blood vessel. The images taken are called angiograms. Angiography provides information about blood vessel abnormalities, such as narrowing, blockage, inflammation, abnormal widening and bleeding, using a liquid contrast agent (known...


Nuclear Medicine

What is nuclear medicine? Nuclear medicine is a medical speciality that involves giving a patient a small amount of radioactive medication, called a radiopharmaceutical. This makes the body slightly radioactive for a short time. A special nuclear medicine camera detects the radiation, which is emitted (released) from the body, and takes images or pictures of how the inside of the...


Interventional Radiology

Interventional radiology is a medical specialisation that involves performing a range of imaging procedures to obtain images of the inside of the body. The interventional radiologist carefully interprets these images to diagnose injury and disease, and to perform a range of interventional medical procedures. Interventional radiologist use imaging techniques…

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Joint Injection

What is a joint injection? A common cause of a painful joint is synovitis (inflammation of the lining of the joint). It can be useful to inject corticosteroid and/or local anaesthetic medication directly into the joint or the soft tissue next to a joint (this is often called a bursa) to reduce the inflammation and provide pain relief. Reduction in pain may make physical therapy…


SPECT-CT Scan

What is a SPECT-CT scan? A SPECT-CT scan is a type of nuclear medicine scan where the images or pictures from two different types of scans are combined together. The combined scan can provide precise information about how different parts of the body are working and more clearly identify problems. Authors: Dr Geoffrey Soo*                     Dr Timothy Cain *    ...


Computed Tomography (CT)

What is computed tomography? Computed tomography (CT) is a way of using X-rays to take pictures or images in very fine slices through the part of the body that the doctor has asked to be investigated. One way to think of it is of taking slices through a loaf of bread. When CT scanners were first invented, they took one slice at a time and were quite slow when compared to today’s…


Contrast Medium: Using Gadolinium or Iodine in Patients with Kidney Problems

What is contrast medium? Contrast media (sometimes called contrast agents or dye) are chemical substances used in medical X-ray, magnetic resonance imaging (MRI), computed tomography (CT), angiography, and occasionally ultrasound imaging. Contrast media enhance and improve the quality of images (or pictures), so that the radiologist (a specialist doctor trained…


Parathyroid MIBI Scan

What is a parathyroid MIBI scan? A parathyroid MIBI scan is used in nuclear medicine to look at possible problems involving the parathyroid gland(s). The parathyroids are four small hormone glands lying close to or embedded in the back surface of the thyroid gland, in the front of the neck. The parathyroid scan uses sestamibi (or MIBI for short), which is a very safe liquid…


Nephrostomy

What is a nephrostomy? Urine is made in the kidneys. Humans have two kidneys, each of which passes urine to the bladder by a tube called the ureter. This tube can become blocked for a number of reasons (e.g. kidney stones or cancer). A blocked ureter can stop the kidney from working properly and can damage the kidney. Also, if the urine that is blocked becomes infected, it can…


Nuclear Medicine DMSA Scan

What is a DMSA scan? DMSA, or dimercaptosuccinic acid, is a radioactive compound (radiopharmaceutical) that when injected into a vein allows images or pictures to be taken of the kidneys. DMSA enters the kidneys and is concentrated in functioning/normal kidney tissue, giving an indication as to how the kidneys are working. It does not provide information as to the internal…


CT Coronary Angiography (CTCA)

What is a computed tomography coronary angiography (CTCA)? Angiography is the X-ray imaging of blood vessels using contrast agents injected into the bloodstream (see Angiography). CTCA uses computed tomography (CT) scanning to take pictures or images (angiograms) of the coronary arteries of the beating heart. These arteries supply blood to the heart muscle, and…


Nuclear Medicine Thyroid Scan

A nuclear medicine thyroid scan uses a radioactive medication (radiopharmaceutical) to take pictures or images of the thyroid gland. The radiopharmaceutical is injected into a vein, usually in the arm, and enters the thyroid gland from the circulating blood. It is detected by a special gamma camera that takes images and provides information about the function and structure…


Octreotide Scan

What is an octreotide scan? Nuclear medicine uses radioactive materials to diagnose or treat diseases. An octreotide scan is one that uses radioactive material to detect certain types of cancers arising from the neuro-endocrine systems (this means cancers that relate to the interaction between the nervous system and hormones from the endocrine system – glands that…


Iodine-131 Therapy

What is Iodine-131 therapy? The thyroid gland is one of the body’s regulators, controlling and regulating the metabolism (the process of converting food and oxygen into energy). Sometimes the thyroid is overactive and sometimes it is affected by cancer. In both cases treatment with radioactive iodine (Iodine–131 therapy) may be required. Iodine-131 is given…


MIBG scan

What is an MIBG scan? An MIBG scan is a nuclear medicine scan that involves an injection of a radioactive medication (radiopharmaceutical) called iodine-123 meta-iodobenzylguanidine – MIBG for short. The radiopharmaceutical is injected into a vein usually on the inside of the elbow. A special gamma camera (a type of scanner) takes images or pictures to confirm if…


MRI Enterography or Enteroclysis

What is an MRI enterography or enteroclysis? Entero means small bowel and graphy means image, so enterography is taking images (or pictures) of the small bowel after drinking fluid to make the small bowel stand out on the images. Enteroclysis means a tube has been placed in the small bowel through the stomach. Whether enterography (drinking fluid) or enteroclysis (tube…