Table 6.
ADC histogram shape related parameters of healthy cervical tissue during CCRT in patients with cervical cancers
| Parameter | Time point 1 | Time point 2 | Time point 3 | Time point 4 |
|---|---|---|---|---|
| Skewness | 0.03 ± 0.12 | 0.01 ± 0.15 | 0.04 ± 0.11 | 0.02 ± 0.13 |
| Kurtosis | 0.09 ± 0.03 | 0.07 ± 0.03 | 0.07 ± 0.04 | 0.07 ± 0.02 |
| First-order entropy | 3.75 ± 0.38 | 3.52 ± 0.36 | 3.48 ± 0.16 | 3.73 ± 0.27 |
| Entropy(H)mean | 6.16 ± 0.56 | 5.71 ± 0.60 | 5.64 ± 0.26 | 5.96 ± 0.67 |
| s-sDav (×10−6 mm2/s) | 1114.40 ± 602.64 | 1190.40 ± 427.14 | 1200.70 ± 451.39 | 1187.00 ± 484.02 |
| Width (×10−6 mm2/s) | 769.90 ± 227.77 | 746.10 ± 281.49 | 782.80 ± 316.62 | 739.10 ± 154.28 |
| Standard deviation | 283.47 ± 81.58 | 286.46 ± 89.72 | 292.76 ± 119.15 | 286.21 ± 56.61 |
Note: ADC, apparent diffusion coefficient; CCRT, concurrent chemo-radiotherapy. Data are presented as mean ± standard deviation. Time point 1: before CCRT; Time point 2: at the end of 2nd week of CCRT; Time point 3: at the end of 4th week of CCRT; Time point 4: immediately after CCRT completion