Table 3 Sensitivity and specificity of significant CT features for differentiating GEPs from GST
From: CT differentiation of gastric ectopic pancreas from gastric stromal tumor
CT features | Sensitivity | Specificity |
|---|---|---|
Qualitative features | ||
Location at the body and antrum | 94.1% (16/17) | 42% (50/119) |
Round or oval | 88.2% (15/17) | 39.5% (47/119) |
Peritumoral infiltration or fat-line of peritumor | 35.3% (6/17) | 97.5% (116/119) |
Intralesional necrosis absence | 94.1% (16/17) | 34.5% (41/119) |
Intralesional calcification absence | 100% (17/17) | 19.3% (23/119) |
Quantitative features | ||
LD (cut off: ≤ 25 mm) | 82.4% (14/17) | 79.0% (94/119) |
SD (cut off: ≤ 22 mm) | 94.1% (16/17) | 59.7% (71/119) |
CTu (cut off: ≥ 39.4 HU) | 64.7% (11/17) | 80.7% (96/119) |
CTu (cut off: ≥ 39.4 HU) | 70.6% (12/17) | 88.2% (105/119) |
CTp (cut off: ≥ 77.5 HU) | 100 and (17/17) | 76.5% (91/119) |
DEAP (cut off: ≥ 32.2 HU) | 76.5% (13/17) | 84.0% (100/119) |
DEPP (cut off: ≥ 42.5 HU) | 82.4% (14/17) | 79.0% (94/119) |