Hepatic VeinsBudd-Chiari SyndromePortal VeinVeinsIntestinal ObstructionAirway ObstructionLiver CirculationVena Cava, InferiorHepatic ArteryUreteral ObstructionHepatectomyLiving DonorsSaphenous VeinLiverLiver TransplantationFemoral VeinPhlebographyVaricose VeinsDuodenal ObstructionMesenteric VeinsPulmonary VeinsUrinary Bladder Neck ObstructionUrethral ObstructionJugular VeinsNasal ObstructionGastric Outlet ObstructionPortal SystemAnastomosis, SurgicalLiver NeoplasmsHypertension, PortalHepatic Veno-Occlusive DiseaseLiver DiseasesVentricular Outflow ObstructionReconstructive Surgical ProceduresUltrasonography, DopplerTomography, X-Ray ComputedVenae CavaeIliac VeinLiver CirrhosisSplanchnic CirculationTreatment OutcomeVenous PressureVascular Surgical ProceduresTissue and Organ HarvestingRenal VeinsUltrasonography, Doppler, ColorConstriction, PathologicLacrimal Duct ObstructionUmbilical VeinsRetrospective StudiesPostoperative ComplicationsPortasystemic Shunt, Transjugular IntrahepaticHepatic EncephalopathyTransplantsPopliteal VeinLiver Function TestsRadiology, InterventionalCholestasisHepatic Stellate CellsEnd Stage Liver DiseaseTime FactorsButterPhlebitisVena Cava, SuperiorCarcinoma, HepatocellularSplenic VeinPortacaval Shunt, SurgicalBlood Flow VelocityRegional Blood FlowAscitesVascular MalformationsCholestasis, ExtrahepaticDogsSubclavian VeinPortasystemic Shunt, SurgicalHeterotaxy SyndromeUltrasonography, Doppler, PulsedCerebral VeinsFollow-Up StudiesAngiographyLigationLiver RegenerationLiver FailureFatty LiverHydronephrosisStentsVisceraCatheterizationPortographyMultidetector Computed TomographyLiver Cirrhosis, AlcoholicConstrictionThrombophlebitisAzygos VeinRetinal VeinPortal PressureProspective StudiesHepatocytesHemostaticsHeart Bypass, Right