Why You Must Know if Your Heart Calcium Score is Zero

What is a coronary artery calcium scan (CACS)?

It is a simple CT of the heart performed without injection of any contrast dyes that permits the easy identification of calcification (plaque) in the three major heart arteries. By good fortune, the density of arteries is different than the fat they sit in and the muscle and blood that are nearby in the heart. Calcium comprises about 20 percent of plaque in arteries but is such a different density than the rest of the heart that even small amounts show up like a…



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