From: CT differentiation of gastric ectopic pancreas from gastric stromal tumor
CT features | GEPs (n = 17) | GST (n = 119) | P value | |
---|---|---|---|---|
Univariate | Multivariate | |||
Qualitative analysis | ||||
Location | 0.006 | 0.021 | ||
Cardia | 1 (5.9%) | 9(7.6%) | 1.000 | |
Fundus | 0 (0%) | 41 (34.4%) | 0.004 | |
Body | 11 (64.7%) | 56(47.1%) | 0.173 | |
Antrum | 5(29.4%) | 13 (10.9%) | 0.085 | |
Contour | 0.034a | 0.747 | ||
Round | 5 (29.4%) | 36(30.3%) | 0.944 | |
Oval | 10 (58.8%) | 36(30.3%) | 0.020 | |
Irregular | 2 (11.8%) | 47 (39.5%) | 0.026 | |
Growth pattern | 0.232a | |||
Endophytic | 4 (23.5%) | 57 (47.9%) | 0.059 | |
Exophytic | 11 (64.7%) | 45 (37.8%) | 0.035 | |
Mixed | 2 (11.8%) | 17 (14.3%) | 1.000 | |
Peritumoral infiltration or fat-line of peritumor | < 0.001a | 0.001 | ||
Yes | 6 (35.3%) | 3 (2.5%) | ||
No | 11 (64.7%) | 116 (97.5%) | ||
Necrosis | 1 (5.9%) | 41 (34.5%) | < 0.001a | 0.048 |
Calcification | 0 (0%) | 23 (19.3%) | 0.048a | 0.211 |
Surface ulceration | 0 (0%) | 11 (9.2%) | 0.193a | |
Lymph node | 0 (0%) | 1 (0.8%) | 1.000a | |
Quantitative analysis | ||||
CT attenuation value | ||||
CTu (HU) | 40.55 ± 8.67 | 34.24 ± 7.19 | < 0.001b | 0.600 |
CTa(HU) | 71.35 ± 19.49 | 54.57 ± 13.77 | 0.01b | 0.901 |
CTp(HU) | 95.09 ± 13.15 | 68.92 ± 17.87 | 0.003b | 0.752 |
Degree of enhancement | ||||
DEAP | 37.44 ± 15.70 | 20.37 ± 11.81 | < 0.001b | 0.047 |
DEPP | 54.49 ± 17.69 | 34.26 ± 15.57 | < 0.001b | 0.762 |
LD (mm) | 21.94 ± 11.81 | 35.26 ± 23.51 | 0.001b | 0.097 |
SD (mm) | 16.06 ± 6.07 | 28.55 ± 16.56 | < 0.001b | 0.069 |
LD/SD | 1.329 ± 0.29 | 1.229 ± 0.21 | 0.07 |