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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)...


Breast Tomosynthesis

What is Breast Tomosynthesis? Breast tomosynthesis (often referred to as 3D mammography) is a type of X-ray examination of the breast. It is a relatively new technology, and research about how to fully utilise it is still being carried out. It has already been shown to be beneficial in the detection of small breast cancers compared with conventional mammography, particularly...


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...


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...


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 *    ...


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 to examine the images and provide a written report to...


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...


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...


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 disease of these vessels (atherosclerosis) is...


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 of the...


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 produce hormones in the...


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 as a capsule that looks much...


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 there are...


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...


Plain Radiograph/X-ray

What is a plain radiograph/X-ray? Radiography is the imaging of body structures, or parts of the body, using X-rays. X-rays are a form of radiation (X-radiation) similar to visible light, radio waves and microwaves. X-radiation is special because it has a very high energy level that allows the X-ray beam to penetrate through the body and create an image or picture....


Diagnostic Mammography

What is diagnostic mammography? A diagnostic mammogram is an X-ray examination of the breasts. This is performed when a person, their doctor or another health professional discovers unusual signs or symptoms in one or both breasts, i.e. a lump, tenderness, nipple discharge or skin changes. The mammogram confirms whether the changes are benign (non cancerous) and no treatment is needed,...


Breast Hookwire Localisation

What is a breast hookwire localisation? Many tests have been developed to find breast cancer early. Tests, such as mammography, ultrasound and magnetic resonance imaging (MRI), can show abnormalities in the breast that cannot be felt by a woman or her doctor. If an abnormality that cannot be easily felt needs to be surgically removed, surgeons need a marker to...


Breast Ultrasound

What is a breast ultrasound? Breast ultrasound is the examination of the breast tissue using an ultrasound scan. Ultrasound uses high frequency soundwaves to produce images (or pictures) of the body that are displayed on a screen. Ultrasound of the breast helps to distinguish fluid filled lumps in the breast (cysts) from solid lumps which may be cancerous or benign...


Breast MRI

What is a breast MRI? A breast MRI (magnetic resonance imaging) is a medical test where magnetic fields, radiowaves and an advanced computer are used to produce very detailed images of the breasts without using X-rays. The MRI machine is a large cylinder-shaped tube surrounded by a circular magnet. You will lie on a sliding examination table that is moved...


Selective Internal Radiation Therapy [SIRT]: SIR-Spheres®

What is SIRT? Selective Internal Radiation Therapy (SIRT) is a treatment for liver cancers or tumours that delivers millions of tiny radioactive microspheres or beads called SIR-Spheres® directly to the liver tumours. SIR-Spheres® are about one third the diameter of a strand of hair in size and they release a type of radiation energy called ‘Beta’ radiation. Beta radiation is...


Vacuum-Assisted Core Biopsy

What is a vacuum-assisted core biopsy? Vacuum-assisted core biopsy is a safe and minimally invasive procedure in which a sample of breast tissue is removed for examination. When breast imaging shows up very small abnormalities too small to be felt (i.e. anything unusual in the structure of the breast), Vacuum-assisted core biopsy is used to obtain samples of the breast...


MRI Scan of the Rectum

What is an MRI scan of the rectum? Magnetic resonance imaging (MRI) uses a very strong magnet, and radio waves, to make detailed pictures of organs inside your body. MRI is considered to give the best (clearest) images or pictures of the tissues around the rectum, for identifying the extent of any disease. It makes very accurate pictures of diseases...


Inferior Vena Cava Filters

What is an inferior vena cava filter? Inferior vena cava filters (IVCF) are mechanical devices that are designed to stop blood clots moving from the legs or pelvis into the heart or lungs. Small clots do not usually result in any problems. Larger blood clots travelling to the lung can cause chest pain, difficulty breathing, heart attack and long term...


Amniocentesis

What is amniocentesis? Amniocentesis is a procedure where a needle is inserted into the abdomen to obtain a small amount of amniotic fluid. The foetus grows in the uterus, or womb, inside a bag called the “amniotic sac” surrounded by amniotic fluid. Amniotic fluid is made by the placenta (the organ that develops inside the uterus to supply food and...


Cerebral Perfusion Study

What is a cerebral perfusion study? A cerebral perfusion study is a nuclear medicine scan that looks at brain function by demonstrating the amount of blood taken up by the brain cells. Other tests such as computed tomography (CT) and magnetic resonance imaging (MRI) show what the skull, brain and blood vessels look like but a nuclear medicine cerebral perfusion...