Pulmonary EmbolismVenous ThrombosisLungEmbolismEmbolism, FatVentilation-Perfusion RatioEmbolectomyVena Cava FiltersThrombophlebitisAnticoagulantsEmbolism, ParadoxicalFibrin Fibrinogen Degradation ProductsTomography, Spiral ComputedThromboembolismAngiographyVentricular Dysfunction, RightIntracranial EmbolismVenous ThromboembolismAcute DiseaseLung DiseasesEmbolism, Amniotic FluidPulmonary ArteryTomography, X-Ray ComputedPhlebographyIntracranial Embolism and ThrombosisLung NeoplasmsHeparinHeparin, Low-Molecular-WeightTechnetium Tc 99m Aggregated AlbuminFibrinolytic AgentsFemoral VeinVena Cava, InferiorThrombolytic TherapyPopliteal VeinThrombosisRetrospective StudiesRisk FactorsProspective StudiesTreatment OutcomeWarfarinLung InjuryPerfusion ImagingEmbolism, CholesterolPostoperative ComplicationsPulmonary InfarctionHemorrhageHemoptysisRecurrenceCarcinoma, Non-Small-Cell LungIliac VeinPredictive Value of TestsKrypton RadioisotopesAutopsyLung TransplantationThrombectomyStreptokinaseXenon RadioisotopesEchocardiography, TransesophagealEchocardiographyEnoxaparinSensitivity and SpecificityFollow-Up StudiesThrombophiliaForamen Ovale, PatentShockRadiography, ThoracicPulmonary CirculationRisk AssessmentIncidenceAntifibrinolytic AgentsRadionuclide ImagingAcute Lung InjuryTachycardia, SinusFatal OutcomeHeart DiseasesPrognosisTime FactorsPlethysmography, ImpedanceBandagesChest PainPregnancy Complications, CardiovascularLegKryptonSeverity of Illness IndexHypertension, PulmonaryDyspneaDevice RemovalStockings, CompressionPulmonary Heart DiseaseBlood Gas AnalysisHeart AtriaTissue Plasminogen ActivatorRespiratory Dead SpaceIntermittent Pneumatic Compression DevicesLung Volume MeasurementsAerospace MedicineHeart Septal Defects, Atrial