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

Table 7 Left colectomies and sigmoidectomies: Overview of all the inferior mesenteric artery stumps 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	17	19	-	-	-
Actual stump	31.70 ± 15.71, (23.62-39.77)	67.24 ± 28.71, (53.40-81.07)	-35.54 ± 7.85, [-51.48-(-19.59)]	-4.53 (34)	< 0.001
D2PLL	35.38 ± 7.83, (31.36-39.41)	40.09 ± 8.11, (36.18-44.00)	-4.71 ± 2.66, (-10.13-0.70)	-1.77 (34)	0.086
D2IP	-3.68 ± 14.30, (-11.04-3.67)	27.14 ± 27.74, (13.77-40.51)	-30.83 ± 7.25, [-45.68-(-15.97)]	-4.25 (27.5)	< 0.001
D3IP	21.70 ± 15.71, (13.62-29.78)	57.24 ± 28.71, (43.40-71.07)	-35.54 ± 7.85, [-51.48-(-19.59)]	-4.53 (34)	< 0.001
Statistics for D2IP, t (df), P	-1.06 (16), l0.304	4.26 (18), < 0.011	-	-	-
Statistics for D3IP, t (df), P	5.69 (16), < 0.001	8.68 (18), < 0.001	-	-	-

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.