Role of dynamic perfusion magnetic resonance imaging in patients with local advanced rectal cancer

Table 1 Differences in terms of perfusion parameters in the healthy rectal wall and the tumor tissue, determines through the dynamic contrast enhanced magnetic resonance imaging study for staging rectal cancer (MR1)

DCE-MRI parameters	Healthy rectal wall	Rectal tumor	P value
RAE (mean ± SD)	57.5 ± 41.5	100 ± 38	0.005
RVE (mean ± SD)	75.5 ± 43	119.5 ± 26.5	0.005
RLE (mean ± SD)	82 ± 38.5	114 ± 22.5	0.005
ME (mean ± SD)	807 ± 227.5	1143.5 ± 348	0.004
TTP (mean ± SD)	217 ± 79	185 ± 41	0.040
AUC (mean ± SD)	114388.5 ± 46237.5	186197 ± 41042.5	0.005

DCE-MRI: Dynamic-contrast enhanced magnetic resonance imaging; RAE: Relative arterial enhancement; RVE: Relative venous enhancement; RLE: Relative late enhancement; ME: Maximum enhancement; TTP: Time to peak; AUC: Area under the curve.