Article Figures & Data
Figures
- Fig 1.
Representative images of vwMRI studies of symptomatic ICAD lesions (arrows) in each of the 3 timing cohorts, <20 minutes (A and B), 20–30 minutes (C and D), and 30–40 minutes (E and F). For each study, pre- (A, C, and E) and postcontrast (B, D, F) images are shown of lesions in the right V4 segment (A and B), distal left M1 segment (E and F).
- Fig 2.
Linear regression between the minutes from contrast injection to T1 DANTE and the percentage increase in plaque signal intensity between pre- and postcontrast.
Tables
Correlation between time from contrast injection to T1 DANTE and measurements of change in signal intensity between pre- and postcontrast
Variable Correlation Coefficient Coefficient of Determination (r2) P Value Time from contrast injection to T1 DANTE Plaque (% increase) 0.370 0.137 .029 Low infundibulum (% increase) (n = 34) −0.314 0.099 .071 Cavernous sinus (% increase) (n = 32) −0.054 0.003 .770 Muscle (% increase) (n = 33) −0.011 <0.001 .951 Choroid plexus (% increase) (n = 33) 0.049 0.002 .788 Change in signal intensity between pre- and postcontrast Plaque (% increase) 0.370 0.137 .029 Low infundibulum (% increase) (n = 34) −0.314 0.099 .071 Cavernous sinus (% increase) (n = 32) −0.054 0.003 .770 Muscle (% increase) (n = 33) −0.011 <0.001 .951 Choroid plexus (% increase) (n = 33) 0.049 0.002 .788
