2018
Variability in Ejection Fraction Measured By Echocardiography, Gated Single-Photon Emission Computed Tomography, and Cardiac Magnetic Resonance in Patients With Coronary Artery Disease and Left Ventricular Dysfunction
Pellikka PA, She L, Holly TA, Lin G, Varadarajan P, Pai RG, Bonow RO, Pohost GM, Panza JA, Berman DS, Prior DL, Asch FM, Borges-Neto S, Grayburn P, Al-Khalidi HR, Miszalski-Jamka K, Desvigne-Nickens P, Lee KL, Velazquez EJ, Oh JK. Variability in Ejection Fraction Measured By Echocardiography, Gated Single-Photon Emission Computed Tomography, and Cardiac Magnetic Resonance in Patients With Coronary Artery Disease and Left Ventricular Dysfunction. JAMA Network Open 2018, 1: e181456-e181456. PMID: 30646130, PMCID: PMC6324278, DOI: 10.1001/jamanetworkopen.2018.1456.Peer-Reviewed Original ResearchConceptsLeft ventricular ejection fractionCoronary artery diseaseCardiovascular magnetic resonanceVentricular ejection fractionArtery diseaseCore laboratorySingle photon emissionVentricular dysfunctionEjection fractionBland-Altman plotsLVEF measurementsAssociation of LVEFGated single-photon emissionIschemic heart failureLeft ventricular dysfunctionSubset of patientsOptimal treatment strategyImaging modalitiesMulticenter diagnostic studyCardiac magnetic resonanceInternational multicenter studyLVEF dataMost patientsHeart failureSurgical treatment
2017
Value of Cardiovascular Magnetic Resonance Imaging–Derived Baseline Left Ventricular Ejection Fraction and Volumes for Precise Risk Stratification of Patients With Ischemic Cardiomyopathy: Insights From the Surgical Treatment for Ischemic Heart Failure (STICH) Trial
Pai RG, Varadarajan P, Rouleau JL, Stebbins AL, Velazquez EJ, Al-Khalidi HR, Pohost GM. Value of Cardiovascular Magnetic Resonance Imaging–Derived Baseline Left Ventricular Ejection Fraction and Volumes for Precise Risk Stratification of Patients With Ischemic Cardiomyopathy: Insights From the Surgical Treatment for Ischemic Heart Failure (STICH) Trial. JAMA Cardiology 2017, 2: 577-579. PMID: 28199489, PMCID: PMC5814980, DOI: 10.1001/jamacardio.2016.5492.Peer-Reviewed Original ResearchMeSH KeywordsAgedCardiac Surgical ProceduresCardiomyopathiesFemaleHeart FailureHeart VentriclesHumansKaplan-Meier EstimateMagnetic Resonance ImagingMagnetic Resonance Imaging, CineMaleMiddle AgedMortalityMultivariate AnalysisMyocardial IschemiaOrgan SizePlastic Surgery ProceduresRisk AssessmentStroke VolumeConceptsIschemic Heart Failure (STICH) trialCardiovascular magnetic resonance imagingHeart Failure TrialVentricular ejection fractionPrecise risk stratificationMagnetic resonance imagingEjection fractionIschemic cardiomyopathySurgical treatmentFailure TrialRisk stratificationResonance imagingPatientsCardiomyopathyBaselineTrials
2016
Reassessment of Cardiac Function and Implantable Cardioverter-Defibrillator Use Among Medicare Patients With Low Ejection Fraction After Myocardial Infarction
Pokorney SD, Miller AL, Chen AY, Thomas L, Fonarow GC, de Lemos JA, Al-Khatib SM, Velazquez EJ, Peterson ED, Wang TY. Reassessment of Cardiac Function and Implantable Cardioverter-Defibrillator Use Among Medicare Patients With Low Ejection Fraction After Myocardial Infarction. Circulation 2016, 135: 38-47. PMID: 27881561, DOI: 10.1161/circulationaha.116.022359.Peer-Reviewed Original ResearchMeSH KeywordsAgedDatabases, FactualDefibrillators, ImplantableFemaleHeart VentriclesHumansMagnetic Resonance ImagingMaleMedicareMyocardial InfarctionMyocardial RevascularizationProportional Hazards ModelsRegistriesRetrospective StudiesStroke VolumeSurvival RateTomography, X-Ray ComputedUltrasonographyUnited StatesConceptsLow ejection fractionEjection fractionICD implantationMyocardial infarctionMI admissionsRevascularization statusImplantable cardioverter-defibrillator (ICD) useACTION Registry-GWTGICD implantation ratesMultivariable Cox modelPost-MI patientsYears of ageImplantation rateCardiac functionMedicare patientsCox modelPatientsAdmissionHigher likelihoodInfarctionImplantationAssociationYearsStatusICD
2011
LV Thrombus Detection by Routine Echocardiography Insights Into Performance Characteristics Using Delayed Enhancement CMR
Weinsaft JW, Kim HW, Crowley AL, Klem I, Shenoy C, Van Assche L, Brosnan R, Shah DJ, Velazquez EJ, Parker M, Judd RM, Kim RJ. LV Thrombus Detection by Routine Echocardiography Insights Into Performance Characteristics Using Delayed Enhancement CMR. JACC Cardiovascular Imaging 2011, 4: 702-712. PMID: 21757159, PMCID: PMC3724234, DOI: 10.1016/j.jcmg.2011.03.017.Peer-Reviewed Original ResearchMeSH KeywordsAgedChi-Square DistributionContrast MediaEchocardiographyFemaleHeart DiseasesHeart VentriclesHumansMagnetic Resonance ImagingMagnetic Resonance Imaging, CineMaleMiddle AgedPredictive Value of TestsProspective StudiesRegistriesThrombosisVentricular Dysfunction, LeftVentricular Function, LeftConceptsDelayed-enhancement cardiac magnetic resonanceLeft ventricular thrombusRoutine echoPositive predictive valuePredictive valueClinical indicationsLeft ventricular systolic dysfunctionLV thrombus detectionVentricular systolic dysfunctionRoutine clinical careCardiac magnetic resonanceNegative predictive valueDiagnostic confidence scoreLVT detectionSystolic dysfunctionVentricular thrombusEmbolic eventsEnhancement CMREcho contrastMural thrombusPrimary indicationContrast useClinical carePatientsThrombus