Vena Cava, InferiorVena Cava, SuperiorVena Cava FiltersSuperior Vena Cava SyndromeVenae CavaeAzygos VeinRenal VeinsPhlebographyVenous ThrombosisBudd-Chiari SyndromeVascular NeoplasmsHepatic VeinsIliac VeinPulmonary EmbolismVascular MalformationsDevice RemovalTomography, X-Ray ComputedHeart AtriaLeiomyosarcomaInferior ColliculiBrachiocephalic VeinsFemoral VeinPortal VeinTreatment OutcomeConstriction, PathologicHeterotaxy SyndromeVeinsScimitar SyndromeCatheterization, Central VenousSitus InversusVenous PressureAtrial FlutterAnastomosis, SurgicalPulmonary VeinsHeart Bypass, RightJugular VeinsThrombosisHeart NeoplasmsRetroperitoneal NeoplasmsDogsProsthesis ImplantationCatheter AblationThrombectomyVascular DiseasesConstrictionForeign-Body MigrationMagnetic Resonance ImagingLeiomyomatosisAnticoagulantsHeart Defects, CongenitalVascular Surgical ProceduresSubclavian VeinMesenteric VeinsThrombophlebitisBlood Vessel Prosthesis ImplantationArteriovenous FistulaPolytetrafluoroethyleneRetrospective StudiesTime FactorsCoronary SinusCatheterizationFontan ProcedureHeart Septal Defects, AtrialIncidental FindingsPulmonary ArteryVascular GraftingHepatectomyPortacaval Shunt, SurgicalFollow-Up StudiesReplantationTricuspid ValveSuperior ColliculiAtrial Function, RightEchocardiographyAngiographyCollateral CirculationMesenteric Artery, InferiorLiver CirculationStentsUltrasonography, PrenatalMultiple TraumaHemodynamicsLiver TransplantationEquipment FailureBlood Vessel ProsthesisFatal OutcomeEdemaPortal SystemMesenteric Artery, SuperiorNephrectomyAbdomenAbnormalities, MultipleVascular PatencyAscitesEchocardiography, TransesophagealKlippel-Trenaunay-Weber SyndromeUltrasonography, Doppler, ColorBlood Flow VelocityPoint-of-Care SystemsLigation