Post-operative computed tomography scan – reliable tool for quality assessment of complete mesocolic excision

Table 6 Left colectomies: Inferior mesenteric artery stump comparison between groups A and B

	Group A, mean in mm ± SD, (95%CI)	Group B, mean in mm ± SD, (95%CI)	A – B difference, mean in mm ± SE, (95%CI)	Statistics for A – B difference, t (df)	P-value
Left colectomy, n	4	3	-	-	-
Actual stump	19.60 ± 9.22, (4.94-34.27)	52.93 ± 13.15, (20.27-85.60)	-33.33 ± 8.37, [-54.85-(-11.81)]	-3.98 (5)	0.0111
D2PLL	36.12 ± 3.52, (30.52-41.73)	40.17 ± 8.25, (19.67-60.66)	-4.04 ±4.50, (-15.60-7.52)	-0.90 (5)	0.410
D2IP	-16.52 ± 11.71, (-35.16-2.12)	12.77 ± 19.79, [-36.40-(-61.93)]	-29.29 ± 11.8, [-59.64-(-1.06)]	-2.48 (5)	0.056
D3IP	9.60 ± 9.21, (-5.06-24.27)	42.93 ± 13.15, (10.27-75.60)	-33.33 ± 8.37, [-54.85-(-11.81)]	-3.98 (5)	0.0111
Statistics for D2IP, t (df), P	-2.82 (3), 0.0671	1.12 (2), 0.38	-	-	-
Statistics for D3IP, t (df), P	2.08 (3), 0.1291	5.66 (2), 0.031	-	-	-

¹Reference to RESULTS text. D₂IP: D2 improvement potential, calculated as difference of actual stump; D₃IP improvement potential, calculated as difference of actual stump – 10 mm (D3 level). D₂PLL: D2 predicted ligation level.