<prompt> True about Coronary Calcium Scoring EXCEPT:Done with the help of CT scan machineRequires administration of iodinated contrastScore 400 indicates very high risk of ischemic hea diseaseRadiation dose 1-2 mSv  <response>: CT Coronary Calcium Scoring Simplest application of cardiac CT Does not require administration of iodinated contrast. Presence of coronary aery calcification has been associated with increased burden of atherosclerosis and cardiovascular moality. Radiation dose associated is very low 1-2 mSv. Coronary calcium is then quantifiedAgatston score Categorized as Minimal 0-10 Mild 10-100 Moderate 100-400 Severe 400 