Table 2.
Correlation between TRG score and the IVIM-DWI parametric values.
| Parameter | r | P |
|---|---|---|
| preADC | −0.090 | 0.571 |
| preD | −0.005 | 0.977 |
| preD* | 0.172 | 0.275 |
| pref | 0.357 | 0.020 |
| postADC | 0.204 | 0.194 |
| postD | 0.551 | <0.001 |
| postD* | 0.112 | 0.481 |
| postf | 0.043 | 0.785 |
| ∆%ADC | 0.252 | 0.107 |
| ∆%D | 0.605 | <0.001 |
| ∆%D* | 0.017 | 0.914 |
| ∆%f | −0.046 | 0.774 |
TRG,tumor regression grade; IVIM-DWI, intravoxel incoherent motion diffusion-weighted imaging; ADC, apparent diffusion coefficient; D, pure diffusion coefficient; D*, pseudo-diffusion coefficient; f, perfusion fraction.