Value of placental virtual magnetic resonance elastography and intravoxel incoherent motion-based diffusion and perfusion in predicting adverse outcomes of small-for-gestational-age infants

Insights into Imaging

Table 2 Inter-and intra-reader ICCs for the measurements of parameters

Parameters	Inter-reader ICC	Intra-reader ICC
vMRE parameter
μ_diff	0.811 (0.682–0.887)	0.896 (0.783–0.945)
Diffusion and perfusion parameters
f	0.924 (0.876–0.954)	0.964 (0.940–0.978)
D	0.907 (0.848–0.943)	0.954 (0.916–0.974)
D^*	0.902 (0.808–0.947)	0.937 (0.897–0.962)
DDC	0.958 (0.928–0.975)	0.977 (0.959–0.987)
Alpha	0.899 (0.837–0.938)	0.847 (0.758–0.906)
ADC	0.951 (0.912–0.972)	0.963 (0.932–0.979)

Data in parentheses are 95% confidence intervals
ADC Apparent diffusion coefficient, Alpha Diffusion heterogeneity index, DDC Diffusion distribution coefficient, D True diffusion coefficient, D^* Pseudo-diffusion coefficient, f Perfusion fraction, ICC Intra-class correlation coefficient, vMRE virtual magnetic resonance elastography, μ_diff Diffusion-weighted imaging–based shear modulus