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| VB | HB | VB+HB | |
|---|---|---|---|
| Decreased serosal margins visualization | 25/66 (37.8%) | 29/66 (43.9%) | 20/66 (30.3%) |
| Peritoneal effusion | 15/66 (22.7%) | 21/66 (31.8%) | 18/66 (27.3%) |
| Pneumoperitoneum | 4/66 (6.1%) | 7/66 (10.6%) | 5/66 (7.6%) |
VB: Vertical beam; HB: Horizontal beam.
