Table 3.

Comparison of the DWI metrics ADC and D_K, which showed statistical significance in the analysis of variance (Table 2), between tumours and downstream and upstream non-tumorous parenchyma.

DWI metrics	Comparison of regions	Mean difference	Standard error	P-value (Bonferroni)
	Upstream parenchyma vs. tumour	0.23	0.05	<0.0001
ADC (10−3 mm2/s)	Downstream parenchyma vs. tumour	0.15	0.05	0.007
	Upstream vs. downstream parenchyma	0.08	0.06	0.72
	Upstream parenchyma vs. tumour	0.59	0.15	<0.001
DK (10−3 mm2/s)	Downstream parenchyma vs. tumour	0.52	0.13	<0.001
	Upstream vs. downstream parenchyma	0.07	0.18	1

Abbreviations: ADC = apparent diffusion coefficient, D_K = corrected diffusion coefficient.