Using computed tomography scans to develop an ex-vivo gastric model

Table 1 Height, mass and BMI measurements of patients

	BMI 17.58-24.9 kg/m2	BMI 25.0-39.66 kg/m2
	n = 19	n = 14
Height (m)	1.69 ± 0.10	1.69 ± 0.10
Mass (kg)	62.50 ± 10.25a	83.61 ± 11.34a
BMI (kg/m2)	21.83 ± 2.16c	29.27 ± 3.79c

All values mean ± SD. ^a,cP < 0.05.

Table 2 Anthropometrical data from CT scans compared to those reported in literature

	Group I	Group II	Kuiken et al[13]	Kim et al[6]
	n = 19	n = 14		Obese	Non-obese
GV (cm3)	143 ± 97	190 ± 88	182 ± 11	217 ± 40	208 ± 38
GSA (cm2)	154 ± 65	191 ± 6
Pearson’s	0.98	0.98
coefficient, r

All values expressed as mean ± SD. GV: Gastric volume. GSA: Gastric surface area.

Table 3 Proximal and distal gastric volume and gastric surface area data from CT scans

BMI(kg/m2)	Proximal GV(cm3)	Distal GV(cm3)	Proximal GSA(cm2)	Distal GSA(cm2)
17.58-24.90 kg/m2	78 ± 54	91 ± 36	84 ± 36	76 ± 37
25.00-39.66 kg/m2	67 ± 52	87 ± 26	96 ± 31	94 ± 18

All values expressed as mean ± SD. GV: Gastric volume. GSA: Gastric surface area.

Table 4 Mean gastric wall thickness from CT scans

BMI (kg/m2)	Gastric Wall Thickness (mm)
17.58-24.90 kg/m2	3.61 ± 0.51
25.00-39.66 kg/m2	3.37 ± 0.41
Gossios et al[3]	3.2
Scatarige et al[4]	3
Huh et al[14]	3.92 ± 0.16

All values expressed as mean ± SD. Values from literature are given as a comparison.

Table 5 Mean anterior and posterior gastric wall thickness data from CT scans

BMI(kg/m2)	Anterior(mm)	Posterior(mm)	Proximal(mm)	Distal(mm)
17.58-24.9 kg/m2	3.54 ± 0.77	3.37 ± 0.66	3.55 ± 0.73	3.64 ± 0.74
25.0-39.66 kg/m2	3.61 ± 0.72	3.53 ± 0.69	3.42 ± 0.72	3.42 ± 0.68
Pickhardt et al[1]	5.00 ± 1.90	5.20 ± 1.70

All values expressed as mean ± SD. Values from literature are given as a comparison.