A coronary calcium scan is performed to help clinicians assess the severity of the plaque formation that are caused by fat and calcium. Restriction of these vital vessels deprive them of oxygen rich nutrients needed for survival. This scan helps to see how narrow the vessel is to give appropriate treatment options.

First, the technician attaches electrodes to your chest. These connect to an EKG, which monitors your heart's electrical activity during the exam. The X-Ray images are taken between heartbeats During the heart scan, you can expect to lie on your back on a movable table. The table slides into the tubelike CT scanner. Your head is outside the scanner the entire duration of the test. You may be given medication either by pill or injection that slows your heart to help ensure clear images. If you are nervous or anxious, you may be given medication to help you remain calm. You'll be asked to hold still and hold your breath for a few seconds while the pictures are taken. The technician will be in a room next door, but can see and talk to you the entire time. The entire procedure should take about 10 to 15 minutes.