Vena Cava, InferiorVena Cava, SuperiorSuperior Vena Cava SyndromeVena Cava FiltersVenae CavaeAzygos VeinHepatic VeinsHepatic ArteryPhlebographyRenal VeinsVenous ThrombosisBudd-Chiari SyndromePulmonary EmbolismVascular NeoplasmsBrachiocephalic VeinsIliac VeinVascular MalformationsTomography, X-Ray ComputedHeart AtriaLiverDevice RemovalHepatic EncephalopathyCatheterization, Central VenousLiver CirculationTreatment OutcomeSuperior ColliculiLeiomyosarcomaJugular VeinsPortal VeinHepatectomyHepatic Stellate CellsCoronary SinusFemoral VeinPulmonary VeinsVenous PressureLiver NeoplasmsConstriction, PathologicVeinsMesenteric Artery, SuperiorDogsLiver DiseasesAnastomosis, SurgicalTime FactorsHeterotaxy SyndromeHeart Bypass, RightScimitar SyndromeThrombosisSubclavian VeinProsthesis ImplantationLiver CirrhosisSitus InversusLiver TransplantationCatheter AblationVascular DiseasesHeart NeoplasmsHepatocytesConstrictionCatheterizationPortacaval Shunt, SurgicalRetrospective StudiesMesenteric VeinsIncidental FindingsHeart Defects, CongenitalVascular Surgical ProceduresAnticoagulantsPolytetrafluoroethyleneBlood Vessel Prosthesis ImplantationAtrial FlutterThrombophlebitisRetroperitoneal NeoplasmsFollow-Up StudiesFatty LiverEquipment FailureThrombectomyHeart Septal Defects, AtrialMagnetic Resonance ImagingForeign-Body MigrationAngiographyStentsFatal OutcomeCardiovascular AbnormalitiesMediastinal DiseasesRats, Sprague-DawleyCollateral CirculationPulmonary ArteryMediastinal NeoplasmsEchocardiographyHypertension, PortalTricuspid ValveLeiomyomatosisArteriovenous FistulaEchocardiography, TransesophagealAscitesVascular GraftingMultiple TraumaHydrothoraxBlood Flow VelocityRegional Blood FlowCarcinoma, HepatocellularBlood Vessel Prosthesis