Fig. 7

Generalized Q-space imaging (GQI) tractography of an aorta segment advanced atherosclerotic plaque without rupture using tract-based helix angles. A GQI displaying heterogeneity in plaque region, B distribution of tract count in the media and intima with regards to fiber helical angle orientation, C statistical evaluations of proportion of tracts with helical angle orientations. Fiber orientations via helical tractography are differentiated by the color bar as shown. Statistical analysis performed using the paired t-test is shown with the p-value indicated as ** less than 0.01