CT Coronary Angiography

What is a CT Coronary Angiography ?

Traditionally, Cardiac angiography has been used to examine coronary arteries, but in recent years CT technology has advanced into coronary imaging. Coronary CTA is similar to a CT heart score, but in addition to identifying calcified plaque CCTA can also evaluate soft plaque (fatty deposits) in the walls of the artery. As soft plaque builds it can leak into the vessel resulting in vulnerable plaque. Vulnerable plaques can lead to obstruction of blood flow, stroke, and/or a heart attack.
Research has demonstrated that a negative coronary CTA is a strong indicator that the patient does not have coronary artery disease. Due to the non-invasive nature of CCTA, it is becoming the first diagnostic test to evaluate the presence or absence of coronary artery disease, when clinically indicated. In patients with acute cardiac symptoms, catheter angiography is still preferred because immediate intervention, such as stenting a narrowed artery, can be performed at the same time.
With House Of Diagnostics ultrafast 427 slices per second CT Scanner, Coronary CT Angiography is effective, fast, painless method to diagnose the ailments of coronary arteries.

What Can I Expect?

Exam Preparation

  • No caffeine 12 hours prior to the examination.
  • No cold medicine and withhold inhalers if possible.
  • No solid food 4 hours prior to the exam.
  • Drink water, there is no restriction on your water intake.
  • If your heart rate is over 60 beats per minute, a Beta Blocker will be necessary to maintain a rate of 60 beats per minute or less. Optimal heart rate is 55-60 BPM.
  • If you have an allergy to the IV iodinated contrast media you will need to be pre-medicated.

During the Exam

  • Any metal that is within the area to be scanned will need to be removed.
  • The technologist will insert an IV for the injection of the iodinated contrast media.
  • During the scan your arms will be brought above your head and ECG leads will be attached to your chest.
  • You will be asked to hold your breath for a few seconds while the images are being taken.

After the Exam

  • Following your exam you will be asked to remain in the department until your IV has been removed.