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Figure 6. Percentage of area stenosis versus rotation time for a moving stenotic vessel phantom scanned on 16– and 64–detector row CT systems with coronary CT angiography protocols and multiple gantry rotation times (0.33, 0.42, and 0.5 seconds). The measurements were performed for 0.6-, 0.75-, and 1-mm section widths. (See the text for additional details.)
