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Coronary CT scan 

What is a coronary CT scan? 

A computed tomography (CT) scan of the coronary arteries is an imaging test that uses X-rays to create detailed images of the arteries that supply blood to the heart muscle. Unlike conventional X-rays, which provide a 2D image, coronary CT uses advanced technology to obtain 3D images of the heart and its blood vessels. 

What is this diagnostic procedure for? 

The main uses of a coronary CT scan are: 

  • Coronary artery disease detection: It allows the detection of coronary artery disease due to atherosclerosis (accumulation of fat and inflammatory cells) that increases the risk of angina/myocardial infarction. 
  • To assess obstructions and narrowings: It helps to identify possible blockages or narrowing in the coronary arteries. 
  • Treatment planning: It facilitates informed decision-making regarding treatment and patient management. 

Benefits of advanced technology in a coronary CT scan 

A coronary CT scan offers a number of key benefits thanks to the technology it uses: 

  • Detailed images: It allows detailed images of the heart and its blood vessels to be obtained. 
  • Non-invasive: it is a non-invasive technique, which means it does not require surgery or incisions. 
  • Quick and simple: It is a quick and simple scan that usually lasts between 10 and 20 minutes. 

Accurate assessment: It allows cardiologists to accurately analyze the condition of the coronary arteries. 

Tc coronario a19 2560x1707

What does the procedure involve?

A coronary CT scan is a relatively simple procedure that consists of the following steps: 

  • Preparation:

    You will be asked to fast for the 6 hours prior to arriving for the scan. 
  • During the procedure:

    First, our doctors will ask you to lie down on a table that slides into the CT scanner. They will place electrodes on your chest to monitor your heart rate and a cuff on your arm to measure your blood pressure. An intravenous line will also be placed in the arm. Provided you have no medical contraindication, you will be given a sublingual vasodilator (nitroglycerin), which has a very short effect and allows for a better study of the arteries of the heart. In some cases, it may be necessary to administer medication to lower the heart rate slightly. This is always monitored and in the presence of a cardiologist. If this should happen, you will be given a contrast medium through an intravenous line. This helps the arteries be seen more clearly in the images. During the scan, you will be asked to remain still and, on occasion, briefly hold your breath. 
  • After the procedure:

    Once the images have been acquired, the IV line will be removed and you can resume your normal activities. 

Recommendations for the procedure 

Remember that it is important to adhere to the following recommendations to ensure the quality of the test and your comfort: 

  • Inform your doctor: if you have any allergies, especially to iodine or iodinated contrast. You must also inform your doctor if you are pregnant. 
  • Medications: Be sure to inform your doctor about any medications you are taking. 
  • Clothing: We recommend comfortable clothing and avoiding jewelry or metal accessories that may interfere with the images. 

Are there any risks? 

A coronary CT scan is generally considered safe, but like any medical procedure, there are some minor risks to consider: 

  • Exposure to radiation: CT scans use radiation, but the amount is generally low and considered safe. Your doctor will assess whether the benefits outweigh the risks. 
  • Reaction to the contrast agent: Some people may experience allergic reactions to the contrast medium, although this is rare. If this should happen, a doctor will be present at all times to assist you. 
  • Kidney problems: If you have kidney problems, it is important that you discuss this with your doctor, as the contrast medium can affect kidney function. 

To ensure your procedure runs smoothly, we ask that you arrive before the scheduled time. This will allow us to complete the necessary administrative and clinical preparation. 

Before the procedure, we will give you the Informed Consent form, a document with important information that you must read and sign. 

If your appointment is for an MRI, it is crucial that you inform us about the presence of pacemakers, metallic objects, prostheses (including dental prostheses), tattoos, or drug infusion devices such as insulin pumps. 

Do you need to undergo this procedure?

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