CT coronary angiography (CTCA) is a scan that takes pictures of the coronary arteries of a beating heart. A liquid contrast agent is injected into a vein in the arm to increase the density of the blood in the vessels, which allow the inside and outside structure of the blood vessels to be seen more clearly on the CT scan.
For the avoidance of doubt, a CTCA is not the same test as a coronary angiogram.
What is CT-FFR HeartFlow?
CT-FFR HeartFlow is a relatively new way to collate additional data on the physiology as well as the anatomy of coronary arteries. CT scan data is transferred, via cloud technology, to a dedicated HeartFlow team, who are able to analyse the data and create a personalised 3D model of the heart and arteries. From there, computer algorithms are created to assess the impact of blockages on blood flow. The result of this is a colour-coded picture that is used to determine further
treatment. This test costs more than a standard CTCA. Please contact the heart clinic for pricing information.
A CTCA is predominantly used to check for narrowed or blocked arteries in your heart, but it can also be used to check your heart for various conditions. It can be used to look at structures around the heart and plan more complex structural heart interventions.
Due to the nature of an X-ray, you will be exposed to some radiation during the test, although depending on the machine will depend on the amount of radiation used. It is best to speak to your consultant cardiologist if you are pregnant.
In addition, contrast X-ray dye is given that can affect the kidneys and in rare cases can cause an allergic reaction.