Table 2.
Differences in rSI T1, rSI T2, ER and ADCm between Ki67-IL groups (cut-off ≥ 3%). Significant differences (*) were find in ADCm and ER values.
| Ki-67 LI | < 3% | ≥ 3% | p-value |
|---|---|---|---|
| rSI T1 | 1.11 (1.07 – 1.16) | 1.08 (1.02 – 1.11) | 0.207 |
| rSI T2 | 2.11 (1.71 – 2.18) | 1.82 (1.26 – 2.26) | 0.366 |
| ER | 2.14 (1.98 – 2.29) | 1.86 (1.62 – 1.92) | *0.012 |
| ADCm | 0.884 (0.793 – 1.327) | 0.542(0.504 – 0.599) | *0.017 |
| rADCm | 1.07 (1.00 – 1.63) | 0.67 (0.64 – 0.81) | *0.017 |
ADCm, mean apparent diffusion coefficient (x 10-6 mm2/sec); ER, enhancement ratio; Ki-67 LI, Ki-67 labelling index; rADCm, relative mean ADC; rSI T1, signal intensity ratio T1-weighted images; rSI T2, signal intensity ratio T2-weighted images.