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Computed Tomography

Computed Tomography (CT) is a non-invasive imaging technique that uses X-rays and computer technology to produce detailed cross-sectional images of the heart and blood vessels, helping diagnose and evaluate various cardiovascular conditions.

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COMPUTED TOMOGRAPHY CORONARY ANGIOGRAM

Computed tomography (CT) coronary angiogram is an effective imaging test used to identify the plaque depositions in the arteries associated with the heart. This imaging test does not use any type of catheter insertion to the heart. The CT coronary angiogram uses the powerful X-ray equipment to produce pictures of the blood vessels and the heart. This technique is very safe and noninvasive.
CT coronary angiogram is a very effective way to identify various heart problems at an early stage. It is useful, especially, to diagnose atherosclerosis, even before any symptoms are observed. Plaque is made of various substances such as fat, cholesterol and calcium that deposit along the inner lining of the arteries that reduce or completely block blood flow.
Patients undergoing this scan receive an iodine-containing contrast material as an intravenous (IV) injection to ensure the best possible images of the heart blood vessels. The images generated during a CT scan can be reformatted to create three-dimensional (3D) images that may be viewed on a monitor, printed on film or by a 3D printer, or transferred to electronic media.

Computed Tomography Angiography
Before the Procedure

Before the Procedure

  • Avoid eating for at least 4 hours before the procedure.

  • Avoid consuming caffeinated beverages before the procedure.

  • Drinking water is allowed unless otherwise instructed by your doctor.

  • Remove all metal objects that may interfere with the procedure.

  • Inform your doctor about your medical history, medications, and any allergies.

  • Inform your doctor about all current medications you are taking.

  • If you have diabetes, ask your doctor whether insulin should be taken before the procedure.

  • Your pulse rate, body temperature, blood pressure, oxygen level, and breathing rate will be checked before the CT coronary angiogram.

  • Empty your urinary bladder before the procedure.

During the Procedure

  • CT coronary angiography is usually performed in an outpatient facility or the radiology department.

  • The patient lies on a padded table that slides into a large hollow circular scanner.

  • Medications such as beta blockers may be given to temporarily slow the heart rate for better imaging.

  • Electrodes are attached to continuously monitor the patient's heart rate and rhythm.

  • The doctor cleans the arm or hand where the contrast dye will be injected.

  • The contrast dye is administered intravenously (IV) to clearly visualize the coronary arteries.

  • Local anesthesia is given before inserting the IV line.

  • The procedure usually takes about one hour.

  • The CT scanner captures images from different angles.

  • The patient should remain still and may be asked to hold their breath to obtain clear images.

During the CT Angiography Procedure
After the CT Angiography Procedure

After the Procedure

  • Electrodes are removed from the patient's body after the procedure.

  • Hospitalization is usually not required because the procedure is non-invasive.

  • Most patients are able to drive home without assistance.

  • Drink plenty of fluids to help flush the contrast dye from your body.

Results

If the Report is Abnormal

  • Plaque formation or atherosclerosis.

  • Reduced blood flow through the arteries.

  • Reduced blood supply to the heart and surrounding blood vessels.

  • Structural abnormalities of the heart, including congenital heart disease.

If the Report is Normal

  • No abnormalities are detected.

  • The heart is healthy and functioning normally.

  • No obstructions or blockages are observed.

  • The structure of the heart appears normal.

CT Angiography Results
Lifestyle Modifications

Lifestyle Modifications

  • Avoid smoking and alcohol consumption.

  • Eat healthy and nutritious food.

  • Maintain a healthy body weight.

  • Avoid foods high in saturated fats.

  • Manage stress through relaxation and healthy lifestyle habits.

  • Engage in regular physical exercise as advised by your doctor.

  • Interventional or surgical heart procedures may be advised if required.