Table 2.
Comparison of monoexponentially and biexponentially calculated diffusion coefficients: results of calculation with B0–B11 and B0biexp
| Mean ± SD [×10-3 mm2/s] | Median [×10-3 mm2/s] | Range [×10-3 mm2/s] | 95 % CI [×10-3 mm2/s] | r 2 | |
|---|---|---|---|---|---|
| ADCB0 | 1.12 ± 0.24 | 1.04 | 0.82–1.61 | 0.81–1.31 | >0.987 |
| ADCB1 | 1.16 ± 0.23 | 1.09 | 0.84–1.65 | 1.0 | |
| ADCB2 | 1.10 ± 0.24 | 1.01 | 0.78–1.59 | 1.0 | |
| ADCB3 | 1.09 ± 0.24 | 0.99 | 0.77–1.58 | 0.78–1.29 | >0.994 |
| ADCB4 | 1.07 ± 0.25 | 0.97 | 0.74–1.60 | 0.53–1.71 | >0.997 |
| ADCB5 | 1.08 ± 0.24 | 0.98 | 0.76–1.61 | 1.0 | |
| ADCB6 | 1.03 ± 0.25 | 0.96 | 0.69–1.64 | 1.0 | |
| ADCB7 | 2.32 ± 0.65 | 2.24 | 1.40–3.88 | 1.0 | |
| ADCB8 | 1.89 ± 0.41 | 1.86 | 1.11–2.91 | 1.0 | |
| ADCB9 | 1.51 ± 0.30 | 1.41 | 1.04–2.18 | 1.0 | |
| ADCB10 | 1.55 ± 0.41 | 1.56 | 0.77–2.26 | 1.0 | |
| ADCB11 | 1.32 ± 0.26 | 1.27 | 0.98–2.00 | 1.0 | |
| D B0biexp | 0.90 ± 0.30 | 0.84 | 0.17–1.56 | 0.54–1.22 | >0.999 |
ADC monoexponential apparent diffusion coefficient, D diffusion coefficient derived from the biexponential model, B0-B11 and B0 biexp b value combinations defined in Table 1, SD standard deviation, CI median confidence interval of parameter fit, r 2 Pearson’s correlation coefficient squared