Table 3.
Pre- and postoperative radiology
| Preoperative imaging | |
| TVIa (yes/no) | 44/1 |
| TVI<180° (yes/no) | 27/18 |
| TVI > 180° (yes/no) | 14/31 |
| PV/SMV occlusion (yes/no) | 3/42 |
| Length of tumor-vein involvement, mm; median (IQR) | 19 (14–30) |
| Postoperative imaging (n = 43) | |
| Grade A stenosis, 0–49% | 11 |
| Grade B stenosis, 50–69% | 5 |
| Grade C severe stenosis, ≥70% or occlusion/thrombus | 27 |
The change in SMV/PV diameter was used to calculate stenosis. A reduction in the postoperative luminal diameter of 70% compared with the preoperative diameter, and/or the presence of thrombosis was considered not patent. Grade A and B stenosis was considered patent.
a
TVI, tumor-vein interface.