A Combination Analysis of IVIM-DWI Biomarkers and T2WI-Based Texture Features for Tumor Differentiation Grade of Cervical Squamous Cell Carcinoma

Table 3

The comparison of IVIM-DWI parameters.

Group/ value	n^a	ADC	D		f
Poorly differentiated	71	0.74 ± 0.10	0.54 (0.16)	9.13 (11.10)	29.50 (24.80)
Moderately differentiated	49	0.79 ± 0.14	0.63 ± 0.10	17.30 (9.93)	22.60 (5.92)
Well-differentiated	18	0.82 ± 0.12	0.73 ± 0.13	31.32 ± 16.95	18.80 (6.43)
p value^b	—	0.006	<0.001	<0.001	0.034

^aNumber of cases in each group. ^bStatistically significant difference (). The units of the ADC, D, and values are ⁻³ mm²/s, and the unit of the f value is %. The parameters with normal distributions are presented as the mean ± standard deviation, and the parameters with skewed distributions are presented as the median (interquartile range). The analysis of variance was used for the ADC value, and the nonparametric test was used for D, , and f values.