Fig. 1.

Scatter plot shows the coronary enhancement ratio (CER) for stenotic and non-stenotic coronary arteries under adenosine stress. Horizontal long line represents the mean value and the upper and lower short lines the standard error of the mean. On the iodine map (left), CER was significantly less for stenotic coronary arteries than for non-stenotic coronary arteries (* P < 0.001). On the 120 kV images (right), there was no difference in CER between stenotic and non-stenotic coronary arteries