Angioplasty, BalloonAngioplasty, Balloon, CoronaryAngioplasty, Balloon, Laser-AssistedCoronary VesselsCoronary AngiographyCatheterizationCoronary DiseaseAngioplastySwineEquipment DesignCoronary Artery DiseaseCoronary CirculationCoronary Artery BypassStentsCoronary StenosisTreatment OutcomeAngioplasty, LaserBalloon OcclusionMyocardial InfarctionRecurrenceFollow-Up StudiesConstriction, PathologicIntra-Aortic Balloon PumpingCoronary RestenosisTime FactorsCoronary ThrombosisCoronary VasospasmCoronary AneurysmProspective StudiesGastric BalloonIliac ArteryVascular PatencyRisk FactorsFemoral ArteryArterial Occlusive DiseasesRetrospective StudiesTunica IntimaUltrasonography, InterventionalCoronary OcclusionGraft Occlusion, VascularAngiographyCardiac CatheterizationAtherectomy, CoronaryElectrocardiographyPercutaneous Coronary InterventionMyocardial RevascularizationMyocardial IschemiaPlatelet Aggregation InhibitorsPostoperative ComplicationsAngina, UnstableCoronary Care UnitsAortic CoarctationThrombolytic TherapyPopliteal ArteryCarotid Artery InjuriesRetreatmentRisk AssessmentBalloon ValvuloplastyPredictive Value of TestsCollateral CirculationHemodynamicsFeasibility StudiesHyperplasiaDogsBlood Flow VelocityMyocardial ReperfusionAtherectomyAngina PectorisBeta ParticlesTomography, X-Ray ComputedMuscle, Smooth, VascularSeverity of Illness IndexReoperationCarotid ArteriesIschemiaArteriosclerosisVasodilator AgentsCarotid StenosisCalcinosisPulmonary Valve StenosisAngioscopyCardiovascular AgentsSaphenous VeinThrombosisEchocardiographyRenal Artery ObstructionCineangiographyChi-Square DistributionCoronary Artery Bypass, Off-PumpHeartHospital MortalityEndothelium, VascularVascular Surgical ProceduresPrognosisVentricular Function, LeftFibrinolytic AgentsBlood PressureBlood Vessel Prosthesis ImplantationAspirinDilatation