Predictive Ki-67 Proliferation Index of Cervical Squamous Cell Carcinoma Based on IVIM-DWI Combined with Texture Features

Table 2

Statistical results of the IVIM-DWI parameters of the high and low Ki-67 PI groups in CSCC.

	D (×10^−3 mm^2/s)	D (×10^−3 mm^2/s)	f
Ki-67 PI <50% group	0.711 ± 0.142	22.670	0.160
Ki-67 PI ≥50% group	0.619 ± 0.105	10.645	0.240
Z/t value	2.840	−1.741	−1.147
value	0.006	0.082	0.251

PI, proliferation index; IVIM-DWI, intravoxel incoherent motion diffusion weighted imaging; CSCC, cervical squamous cell carcinoma; D, diffusion coefficient; D∗, pseudodiffusion coefficient; f, microvascular volume fraction.