Table 1.
Test/Retest Repeatability of Histogram Metrics
| Units | Meana | wCV (%) | wCV 95% CI (%) | Deltab | BA RCc | ||
|---|---|---|---|---|---|---|---|
| Mean ADC | μm2/ms | 1.17 | 5.36 | 4.63 | 6.46 | −0.010 | 0.156 |
| 15th Pctl | μm2/ms | 0.93 | 8.07 | 6.97 | 9.73 | −0.010 | 0.174 |
| 25th Pctl | μm2/ms | 1.00 | 6.58 | 5.69 | 7.95 | −0.006 | 0.160 |
| 50th Pctl | μm2/ms | 1.15 | 5.44 | 4.70 | 6.56 | −0.009 | 0.158 |
| V0.9 | cm3 | 1.53 | 44.0 | 38.1 | 53.1 | −0.035 | 1.451 |
| V1.1 | cm3 | 3.32 | 36.5 | 31.6 | 44.1 | −0.111 | 2.184 |
| V1.3 | cm3 | 4.96 | 29.1 | 25.1 | 35.1 | −0.259 | 3.281 |
| fV0.9 | 0.24 | 42.4 | 36.7 | 51.2 | 0.018 | 0.230 | |
| fV1.1 | 0.51 | 30.9 | 26.7 | 37.3 | 0.010 | 0.211 | |
| fV1.3 | 0.72 | 15.5 | 13.4 | 18.7 | 0.002 | 0.165 | |
aMean = mean[(TT + RT)/2].
bdelta = mean(TT − RT);.
cBA RC = 1.96 × SD(TT − RT): repeatability coefficient of the BA LOA.