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Fig. 3 —Transverse CT scans in 81-year-old man. Upper row shows CT images (collimation, 0.6 mm; slice thickness, 3 mm; reconstruction increment, 3 mm) of same slice position at different reconstruction intervals, from 50% on left to 70% on right, of the R-R interval in 5% steps. Lower row displays same CT images; calcified plaques are marked in red. Two calcified plaques located in left mainstem and proximal left anterior descending arteries are clearly visualized using 50%, 55%, 60%, and 65% reconstruction intervals, resulting in total Agatston score of 78, 87, 81, and 88, respectively. In 70% reconstruction interval, calcium is deformed and blurred, resulting in overestimation of total Agatston score of 122.