Vena Cava, InferiorVena Cava, SuperiorSuperior Vena Cava SyndromeVena Cava FiltersVenae CavaeAzygos VeinVentriculoperitoneal ShuntCerebrospinal Fluid ShuntsPortasystemic Shunt, SurgicalRenal VeinsPhlebographyPortacaval Shunt, SurgicalInferior ColliculiPeritoneovenous ShuntHepatic VeinsVenous ThrombosisPulmonary EmbolismBudd-Chiari SyndromeVascular NeoplasmsIliac VeinVascular MalformationsBrachiocephalic VeinsHeart AtriaTomography, X-Ray ComputedDevice RemovalPortal VeinHydrocephalusTreatment OutcomeCatheterization, Central VenousLeiomyosarcomaHeart Bypass, RightJugular VeinsHeart Septal Defects, AtrialPulmonary VeinsArteriovenous Shunt, SurgicalAnastomosis, SurgicalVeinsConstriction, PathologicCoronary SinusMesenteric Artery, InferiorHypertension, PortalHeart Defects, CongenitalFemoral VeinVenous PressurePortal SystemHeterotaxy SyndromeEquipment FailureMesenteric VeinsMagnetic Resonance ImagingPulmonary ArteryProsthesis ImplantationAscitesThrombosisForeign-Body MigrationScimitar SyndromeEsophageal and Gastric VaricesSubclavian VeinHeart Septal DefectsDogsArteriovenous FistulaSitus InversusPolytetrafluoroethyleneSplenic VeinRetrospective StudiesCatheterizationVascular DiseasesLiver CirculationCatheter AblationVascular Surgical ProceduresHeart NeoplasmsConstrictionFollow-Up StudiesTime FactorsAtrial FlutterCollateral CirculationBlood Vessel Prosthesis ImplantationEchocardiographyAngiographyPostoperative ComplicationsHepatic EncephalopathyEchocardiography, TransesophagealRetroperitoneal NeoplasmsAnticoagulantsIncidental FindingsMandibular NervePulmonary CirculationFontan ProcedureThrombophlebitisStentsTricuspid ValveCardiac CatheterizationThrombectomyLiver TransplantationCardiac Surgical ProceduresHemodynamicsCyanosisPortographyHepatectomyOlivary NucleusBlood Vessel Prosthesis