Table 2 TIPS geometry parameters of angiography.
From: Cranial stent position is independently associated with the development of TIPS dysfunction
Parameter | No dysfunction (n = 237) | TIPS dysfunction (n = 70) | p | |
|---|---|---|---|---|
Stent characteristics | Nominal stent length (mm) | 70 (40–80) | 70 (50–80) | 0.948 |
Nominal stent diameter (mm) | 10 (10–10) | 10(8–10) | 0.008** | |
Dilatation stent (mm) | 8 (0–10) | 8 (0–10) | 0.383 | |
Underdilated (yes) | 200 (87%) | 56 (82%) | 0.383 | |
Digital subtraction angiography | Distance cranial TIPSa stent end to IVCb (cm)c | 0.4 (− 4–2.5) | 0.5 (− 1.5–3) | 0.05 |
Cranial TIPS stent end in hepatic veind | 45 (30%) | 21 (50%) | 0.014* | |
Contrast medium reflux into IVC after TIPS implantation | 73 (33%) | 23 (38%) | 0.510 | |
Retrograde intrahepatic perfusion of the PVe after TIPS implantation | 119 (54%) | 32 (52.5%) | 0.833 | |
Beginning of covered stent part (PV/Intersection/Liver Parenchyma) | 33/179/5 (15%/83%/2%) | 6/54/1 (10%/88%/2%) | 0.262 | |
α Anglef | 29.7 (0.7–279) | 31.55 (0.9–279) | 0.147 | |
β Angleg | 153.65 (0–178.5) | 159.7 (0–178.8) | 0.275 | |
γ Angleh | 152.6 (60.2–179.3) | 150.8 (41.4–179.1) | 0.363 | |
δ Anglei | 128.5 (47.6–174.6) | 131.3 (43.2–171.2) | 0.959 | |
Largest SPSSj (no SPSS/umbilical/coronary/splenorenal/other) | 1/32/92/30/59 (0.5%/15%/43%/14%/27.5%) | 1/5/31/15/15 (1.5%/7.5%/46%/22.5%/22.5%) | 0.671 | |
Any SPSS embolized | 104 (50%) | 17 (26%) | 0.001** | |
