A CT Carotid Angiogram is a specialized medical imaging procedure that uses computed tomography (CT) technology along with contrast dye to visualize the carotid arteries, the primary arteries responsible for delivering blood to the brain. By generating detailed, three-dimensional images, this procedure can help doctors identify any abnormalities such as narrowing or blockage in the carotid arteries which might increase the risk of stroke.
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This procedure is often recommended when a patient shows symptoms of carotid artery disease such as transient ischemic attacks (mini-strokes), strokes, or certain types of dizziness or headache. It is also used to plan for surgeries to open up narrowed carotid arteries or to evaluate the arteries before or after surgery.
Fasting : You will likely be asked to fast for a few hours before the procedure to ensure that the contrast dye used during the test does not interact with the contents of the stomach.
Medications :Inform your healthcare provider about all the medications you are currently taking. Some medications might need to be adjusted or stopped before the procedure.
Allergies :If you have known allergies to iodine or contrast dyes, let your doctor know. Measures will be taken to manage any allergic reactions.
Hydration :Drink plenty of water before the procedure as it will help flush out the contrast dye from your body after the test.
Pregnancy : It's important to let your healthcare provider know if you could be pregnant, as the radiation from the CT scan can be harmful to the developing fetus.
The amount of calcium in the coronary arteries is measured using a non-invasive technique called a CT calcium score. Because calcium is a precursor to coronary artery disease, this test is helpful in estimating the risk of future cardiac events.
You will lie on a small table that is attached to a CT scanner for the test. To monitor your heart, electrodes will be positioned on your chest. You'll be asked to hold your breath for a short while while the table slides into the scanner and pictures are taken.
No, the test is non-invasive and painless. You may feel some discomfort from lying still on the table.
The scan itself usually takes about 10 to 15 minutes.
Usually, no extra preparation is required for a CT calcium score test. You are free to eat and drink as usual before the exam. Put on comfortable, relaxed clothing.
A radiologist will examine the test photos and provide your doctor with a report after reviewing it. Usually, a week or less will pass before you and your doctor check the results.
The number indicates how much calcium has been found in your coronary arteries. A score of 0 indicates that there is no calcium in the heart, which suggests a reduced risk of future heart attacks. More calcium means a higher risk of heart disease or attack.
Although a high score indicates a higher risk, it does not guarantee a heart attack. To help you control your risk, your doctor can suggest medication, lifestyle modifications, or additional testing.
The risk associated with this test is minimal. It involves exposure to a small amount of radiation, but the benefit of early detection and management of coronary artery disease generally outweighs this risk.
This test is particularly beneficial for people with a moderate risk of heart disease. It can help determine whether lifestyle changes or medication are needed to reduce the risk of heart disease.
After the test, you can typically return home right away and carry on with your regular activities. You and your doctor will talk about the results during a follow-up visit.
It is possible to repeat the test in order to track the development of calcium accumulation in the arteries. It would help if you asked your doctor for advice on how often to get the test.
Usually, a radiologist does the exam—a medical professional with expertise in interpreting imaging testing who will evaluate the findings.
Compared to an MRI machine, the CT scanner is typically more open and is a vast, doughnut-shaped machine. Talk to your doctor about it if you're worried about claustrophobia, though; they can offer you some solutions to help you feel more at ease.
A helpful tool for determining and controlling your risk of heart disease is the high CT calcium score. It is a quick, non-invasive test that can reveal important details about your heart's condition. You and your physician can make well-informed decisions about your health if you are aware of your risks.