Before the procedure, an intravenous line is inserted into a vein in your arm for contrast dye to enter your body. You will feel a warm sensation as this is happening.
You will then have electrodes placed on your chest and wired to an electrocardiogram (heart rate and rhythm) monitor to check and record your heart activity. You are recommended to empty your bladder before the scan as the test takes up to 1 hour including preparation. However, the actual 3D heart scan should only take about 10 minutes.
The scan requires you to lie on a table that is connected to a machine. You will also periodically be asked to raise your arm above your head. A scanner will move back and forth and around you to create 3D images of your heart.
The radiologist will check the images before you can leave the room and the heart CT scan is complete.