Table 3

 Coefficient of variation (CV) for the percentage of no flow pixels and the 10, 25, 50, 75, 90th percentiles of flow in all subjects

Intrasession reproducibility% of 0 pixelsMean flow10 percentile25 percentile50 percentile75 percentile90th percentile
ObserverCV %SDCV %SDCV %SDCV %SDCV %SDCV %SDCV %SD
114.646.1111.595.5811.735.238.844.248.533.7610.795.1615.026.61
218.5511.1713.085.7711.224.679.813.939.534.2912.376.0317.077.30
1/216.599.1012.335.6511.474.909.324.069.034.0211.585.6016.056.95
t test0.220.460.770.500.460.360.35