Table 3.
IVIM Simulated Parameters in Normal and Tumor Tissues Using Various b-Values
| Group | b-values (s/mm2) |
Model | f (%) | D (10−3 mm2/s) | ||
|---|---|---|---|---|---|---|
| Normal | Tumor | Normal | Tumor | |||
| 1 | 0, 188, 375 | K | 6.2 ± 3.6 | 7.4 ± 2.8 | 1.96 ± 0.14 | 0.87 ± 0.11 |
| G | 2.8 ± 3.9 | 5.9 ± 2.8 | 2.24± 0.15 | 1.00 ± 0.11 | ||
| 2 | 0, 375, 563 | K | 12.1 ± 8.1 | 10.4 ± 5.1 | 1.77 ± 0.21 | 0.78 ± 0.12 |
| G | 2.0 ± 10.2 | 5.6 ± 5.6 | 2.25 ± 0.24 | 1.01 ± 0.13 | ||
| 3 | 0, 563, 750 | K | 20.4 ± 14.7 | 14.8 ± 8.0 | 1.57 ± 0.29 | 0.68 ± 0.15 |
| G | 0.8 ± 22.4 | 5.5 ± 9.9 | 2.24 ± 0.36 | 1.00 ± 0.16 | ||
| 4 | 0, 188, 375, 563 | K | 7.7 ± 2.5 | 8.3 ± 1.9 | 1.88 ± 0.08 | 0.82 ± 0.05 |
| G | 2.8 ± 2.9 | 5.8 ± 1.9 | 2.24 ± 0.09 | 1.00 ± 0.06 | ||
Note. Rician noise was included for simulations with Non-Gaussian (K) and Gaussian (G) diffusion models. Data are means ± standard deviations. Perfusion fractions (f) are in percentages.