Compression of the Inferior Vena Cava in Bowel Obstruction
Figure 2
IVC diameters in groups O (bowel obstruction) and C (controls). Antero-posterior (AP, continuous lines) and lateral (LA, dotted lines) diameters in groups O (bowel obstruction) and C (controls) at levels (1)–(7). Vertical bars are the .95 confidence intervals of the means. ANOVA interaction among diameters, 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 renal veins, (6) just before the confluence of the supra-hepatic veins, and (7) just after the confluence of the supra-hepatic veins.
