Degree of retrograde opacification of the portal venous system on CO2 and iodine wedged hepatic venography in the overall series of patients
| CO2 (n) | Iodine (n) | p Value | |
|---|---|---|---|
| RPV | |||
| Marked | 62 | 20 | |
| Slight | 14 | 9 | |
| None | 24 | 71 | <0.02 |
| LPV | |||
| Marked | 64 | 7 | |
| Slight | 10 | 1 | |
| None | 26 | 92 | <0.01 |
| PVT | |||
| Marked | 49 | 5 | |
| Slight | 22 | 2 | |
| None | 29 | 93 | <0.001 |
| SV | |||
| Marked | 34 | 1 | |
| Slight | 10 | 1 | |
| None | 56 | 98 | <0.0001 |
| MV | |||
| Marked | 30 | 0 | |
| Slight | 13 | 1 | |
| None | 57 | 99 | <0.0001 |
| GOC | 34 | 0 | <0.01 |
RPV, right portal vein; LPV, left portal vein; PVT, portal vein trunk; SV, splenic vein; MV, mesenteric vein; GOC, gastrooesophageal collaterals.