CT Coronary Angiogram
What is a CT coronary angiogram?
CT Coronary Angiogram is another type of investigative imaging test that obtain detailed images of the heart and coronary arteries. This test is used to diagnose various heart conditions, and it is non-invasive.
When is a CT coronary angiogram needed?
A CT coronary angiogram helps cardiologists to see if the coronary arteries are narrowed or blocked. Other uses of a CT Coronary Angiogram include:
- Aneurysms
- Atherosclerosis (fatty plaque that builds on the inside of the blood vessels)
- Coronary artery disease
- Pulmonary embolism
Your cardiologist may also suggest a CT Coronary Angiogram if you or your loved ones have/ are experiencing any of the following:
- Chest pains or any symptoms that may suggest an indication of coronary artery disease
- Prior investigations that suggest coronary artery disease
- Evaluate and check for any pre-existing coronary artery disease
- Evaluate the effectiveness of the treatment (angioplasty or bypass surgery)
- Family history of coronary artery disease
- High cholesterol
- High blood pressure
- Smoking
What happens during a CT coronary angiogram?
- Before the investigative test begins, you will be asked to change into a gown. A clinic staff will take your blood pressure and place ECG leads on your chest.
- Once you have been assessed, an intravenous cannula (small plastic needle) will be inserted in the vein near your elbow.
- A GTN (glyceryl trinitrate) will be sprayed under your tongue before the scan begins.
- You will be asked to lie down on a padded couch that moves through the scanner. You may also be asked to hold your breath for up to 15 seconds while lying flat for 5 to 10 minutes. Rest assured; our staff will guide you accordingly.
- A contrast dye will be injected, and you may notice a warm metallic taste. It is normal and will disappear after a few minutes.
- Once the scan has been taken, you will be monitored for about 10 minutes to ensure you are well before leaving.
How should I prepare for a CT coronary angiogram?
Before the scan, your doctor may prescribe medication to take the night before to help lower the heart rate. This enables better quality and accurate images to be taken. Other pointers to note include:
- Avoid taking Cialis, Viagra, or any similar medications for 36 hours before the scan.
- Do inform your doctor if you have asthma or a known allergy to contrast dye. Your doctor may prescribe medication to reduce the risk of an asthmatic attack or allergic reaction.