Table 4.
Logistic regression analyses of addition of various MR imaging protocols to the CRE. Parameters with significant p values are shown in bold. CRE clinical response examination, T2-WI T2-weighted MR imaging, T2-WI + DWI T2-weighted imaging + diffusion-weighted imaging, δADC is the difference between the pretreatment ADC and the post-treatment ADC,ADC apparent diffusion coefficient, estim. estimate, std err. standard error
| Reader 1 | Reader 2 | ||||||
|---|---|---|---|---|---|---|---|
| Model 1 | Model 1 | ||||||
| Estim. | Std. err. | p-value | Estim. | Std. err. | p-value | ||
| Intercept | -2.84 | 0.46 | p<0.0001 | Intercept | -2.84 | 0.46 | p<0.0001 |
| CRE | 1.74 | 0.50 | 0.0006 | CRE | 1.74 | 0.51 | 0.0006 |
| Model 2 | Model 2 | ||||||
| Estim. | Std. err. | p-value | Estim. | Std. err. | p-value | ||
| Intercept | -4.61 | 0.95 | p<0.0001 | Intercept | -5.52 | 1.30 | p<0.0001 |
| CRE | 1.22 | 0.58 | 0.03 | CRE | 1.47 | 0.57 | 0.01 |
| MRimaging | 0.77 | 0.30 | 0.009 | MRimaging | 0.88 | 0.35 | 0.01 |
| Model 3 | Model 3 | ||||||
| Estim. | Std. err. | p-value | Estim. | Std. err. | p-value | ||
| Intercept | -5.43 | 1.17 | p<0.0001 | Intercept | -5.36 | 1.26 | p<0.0001 |
| CRE | 1.08 | 0.65 | 0.09 | CRE | 1.03 | 0.66 | 0.1 |
| MRimaging | 0.03 | 0.40 | 0.9 | MRimaging | 0.54 | 0.38 | 0.2 |
| MRimaging+DWI | 1.06 | 0.32 | 0.001 | MRimaging+DWI | 0.62 | 0.26 | 0.02 |
| Model 4 | Model 4 | ||||||
| Estim. | Std. err. | p-value | Estim. | Std. err. | p-value | ||
| Intercept | -7.09 | 2.35 | 0.003 | Intercept | -5.08 | 1.48 | 0.0006 |
| CRE | 1.35 | 0.77 | 0.07 | CRE | 0.96 | 0.69 | 0.2 |
| MRimaging | 0.10 | 0.41 | 0.8 | MRimaging | 0.56 | 0.39 | 0.2 |
| MRimaging+DWI | 1.29 | 0.43 | 0.003 | MRimaging+DWI | 0.59 | 0.29 | 0.04 |
| δADC | 0.01 | 0.02 | 0.4 | δADC | -0.00 | 0.01 | 0.7 |