Fig. 6

Scatter plots of cross-sectional lumen area of the common carotid artery (CCA) (leftmost column), carotid bifurcation (middle column), and internal carotid artery (ICA) (rightmost column). Compared with CEMRA, better agreement and correlation of cross-sectional lumen areas as assessed by intraclass correlation coefficient (ICC) and linear regression analysis, was observed with hASL MRA, as compared with TOF MRA. TOF MRA tended to underestimate luminal area as compared with CEMRA. Solid lines and gray areas show the lines of best fit and the 95 % confidence intervals, respectively. Linear regression equations are shown at bottom right. Dashed lines are lines of unity