A CT (Computed Tomography) scan of both ankle joints is a non-invasive imaging procedure that utilizes x-ray technology and a computer to produce detailed images of the bones, soft tissues, and blood vessels in and around your ankle joints. This procedure is useful in diagnosing and evaluating a wide range of conditions that affect the ankle joints such as fractures, degenerative joint diseases like arthritis, tumors, and infections.
The ankle joint, which connects the foot with the lower leg, is a complex structure made up of several bones including the tibia, fibula, and talus. It is crucial for standing, walking, running and jumping, and is vulnerable to various types of injuries and conditions. A CT scan can help to accurately visualize the condition of these bones and the surrounding tissues in high detail, aiding in the proper diagnosis and treatment of ailments related to these areas.
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Fasting : There's typically no need to fast prior to a CT scan of the ankle joints unless contrast material is used. If contrast is required, your doctor will provide you with specific instructions.
Allergies : If a contrast material is to be used, inform your doctor if you have any known allergies, particularly to iodine, as it may cause an allergic reaction.
Medication : Continue taking your regular medications unless otherwise instructed by your doctor. If you're diabetic and taking metformin, you may be asked to stop taking it temporarily if contrast material is used.
Clothing : Wear comfortable, loose-fitting clothing. You may be asked to change into a gown for the procedure. Avoid wearing jewelry or clothing with metal as they can interfere with the images.
Pregnancy : Inform your doctor if you're pregnant or suspect you might be, as radiation exposure from the scan can potentially harm the fetus.
Kidney function : If you're having the scan with contrast and have a history of kidney disease, inform your doctor as the dye can sometimes cause kidney problems.
You'll be asked to lie down on a narrow table that slides into the CT scanner. The scanner will rotate around your ankles to capture images from various angles. The procedure is painless, but you'll need to remain still to ensure clear images.
The actual scanning typically takes only a few minutes, but the overall procedure, including preparation and post-scan processes, can take up to an hour.
No, the procedure itself is painless. However, you might feel discomfort from lying still on the examination table.
The CT scanner is not as confining as an MRI scanner, and your ankles will be the only part of your body inside the machine, which may help if you're claustrophobic. If you're still concerned, discuss this with your doctor beforehand.
Your doctor will receive the results within a few days, and will discuss them with you at a follow-up appointment.
The presence of any metallic objects or implants in your body, including surgical screws or plates, can affect the images. It's essential to inform your doctor and the technologist performing the scan about any such objects beforehand.
You can usually return to your normal activities immediately after the procedure. If you were given contrast, you may be advised to drink plenty of fluids to help your kidneys remove the contrast from your body.
If the scan shows something abnormal, your doctor will discuss this with you and plan any necessary treatment or further tests. You might be referred to an orthopedic surgeon for further consultation.
CT scans use a small amount of radiation, which carries a very low risk of causing cancer. The use of contrast material can cause allergic reactions or kidney problems in rare cases.
The frequency of the test depends on your medical condition. Your doctor will advise you based on your specific circumstances.
CT scan of both ankle joints can provide valuable insights into your health, helping your doctor to diagnose conditions accurately and plan effective treatment strategies. It's important to follow all instructions given by your medical team and to discuss any concerns you may have before undergoing the procedure.