Table 2.

Definitions used for visual grading of coronary and aortic calcification on routine diagnostic Chest CT

	Grades
Finding	Absent	Mild	Moderate	Severe
Coronary calcification (LM, LAD, LCX, RCA)a	none	≤5 calcified foci or 1 calcification extending over ≥ 2 slices	>5calcified foci or 2 calcification extending over ≥ 2 slices	>6 calcified foci and ≥ 3 calcification extending over ≥ 2 slices
Aortic and supra aortic calcification	none	≤4 calcified foci or 1 calcification extending over ≥ 3 slices	>4 calcified foci or 2 calcification extending over ≥ 3 slices	calcified aorta covering multiple segments

Note that this table needs to be interpreted as a guideline. Clinical experience of a radiologist is essential to assign points

^a LM left main; LAD left anterior descending; LCX left circumflex; RCA right coronary artery