Are ADC values of readout-segmented echo-planar diffusion-weighted imaging (RESOLVE) correlated with pathological prognostic factors in rectal adenocarcinoma?

Table 2 The differences in pretreatment tumour RESOLVE ADC values stratified according to different histopathological prognostic characteristics

Prognostic factors	Groups	Patients (n)	RESOLVE ADC (± SD) (10⁻³ mm²/s)	P value
Gross classification	Ulcer	56	0.810 ± 0.126	0.001
Gross classification	Eminence	33	0.715 ± 0.111
Histological type	Tubular	64	0.744 ± 0.104	0.000
	Papillary	16	0.795 ± 0.120
	Mucinous	9	0.958 ± 0.155
Pathologic differentiation	High	16	0.792 ± 0.161	0.844
	Moderate	63	0.771 ± 0.123
	Poor	10	0.769 ± 0.129
T stage	T1	5	0.804 ± 0.134	0.876
	T2	36	0.775 ± 0.136
	T3–4	48	0.772 ± 0.124
N stage	N0	56	0.768 ± 0.136	0.526
N stage	N+	33	0.786 ± 0.117
Cancer nodule	Positive	10	0.746 ± 0.106	0.446
Cancer nodule	Negative	79	0.778 ± 0.132
EGFR	Positive	63	0.756 ± 0.131	0.028
EGFR	Negative	26	0.822 ± 0.113

ISSN: 1477-7819