The Agatston score is calculated by multiplying the calcification density by the calcification area, and the score is based on the CT value of the lesion. The higher the score, the higher the risk of cardiovascular disease. Similarly, the direct calcification area multiplied by the layer thickness gives a volume score, which reflects the total volume of calcification, and the Agatston score divided by the calcification area gives a quality score, which reflects the average degree of calcification.