Table 3 Comparison of the diagnostic ability for submucosal invasion depth ≥ 1.8 mm between horizontal and vertical rigidities under the barium enema examination profile view
145 lesions | Vertical rigidity (≥0.7 mm) | ||
|---|---|---|---|
Horizontal rigidity (≥4.5 mm) |  | Positive | Negative |
Positive | 87 | 1 | |
Negative | 21 | 36 | |
χ2 |  | 16.41 | |
P value | 0.01 | ||