Compression of the Inferior Vena Cava in Bowel Obstruction
Figure 3
The ratio between antero-posterior and lateral diameters in groups O (bowel obstruction, continuous line) and C (controls, dotted line). Vertical bars are the .95 confidence intervals of the means. ANOVA interaction among levels and groups, . Levels: (1) 1 cm after the confluence of the iliac veins, (2) 1 cm before the confluence of the renal veins, (3) just before the confluence of the renal veins, (4) just after the confluence of the renal veins, (5) 1 cm after the confluence of the renal veins, (6) just before the confluence of the supra-hepatic veins, and (7) just after the confluence of the supra-hepatic veins.
