2021
Wall shear stress estimated by 3D-QCA can predict cardiovascular events in lesions with borderline negative fractional flow reserve
Tufaro V, Safi H, Torii R, Koo BK, Kitslaar P, Ramasamy A, Mathur A, Jones DA, Bajaj R, Erdoğan E, Lansky A, Zhang J, Konstantinou K, Little CD, Rakhit R, Karamasis GV, Baumbach A, Bourantas CV. Wall shear stress estimated by 3D-QCA can predict cardiovascular events in lesions with borderline negative fractional flow reserve. Atherosclerosis 2021, 322: 24-30. PMID: 33706080, DOI: 10.1016/j.atherosclerosis.2021.02.018.Peer-Reviewed Original ResearchConceptsNegative fractional flow reserveCardiovascular eventsFractional flow reservePrimary endpointFlow reserveSmaller minimum lumen areaAdverse cardiovascular eventsRetrospective cohort studyTarget lesion revascularizationOnly independent predictorMinimum lumen areaQCA variablesAngiographic characteristicsLesion revascularizationCulprit lesionHighest maximum wall shear stressCohort studyCardiac deathIndependent predictorsComplete followMultivariable analysisMyocardial infarctionTarget lesionsArea stenosisNegative FFR
2020
Long‐term serial functional evaluation after implantation of the Fantom sirolimus‐eluting bioresorbable coronary scaffold
Saito Y, Cristea E, Bouras G, Abizaid A, Lutz M, Carrié D, Weber‐Albers J, Dudek D, Anderson J, Lansky A, Investigators T. Long‐term serial functional evaluation after implantation of the Fantom sirolimus‐eluting bioresorbable coronary scaffold. Catheterization And Cardiovascular Interventions 2020, 97: 431-436. PMID: 32077590, DOI: 10.1002/ccd.28804.Peer-Reviewed Original ResearchConceptsPost-percutaneous coronary interventionQuantitative flow ratioBioresorbable coronary scaffoldTarget vessel revascularizationVessel revascularizationFunctional ischemiaStable coronary artery diseaseTime of revascularizationCoronary artery diseaseFractional flow reserveQFR assessmentII trialAngiographic outcomesCoronary interventionUnstable anginaArtery diseaseQFR valueWire-based fractional flow reserveSignificant lesionsFlow reservePatientsTarget vesselRevascularizationQFR analysisFunctional evaluation
2016
Diagnostic Accuracy of Fast Computational Approaches to Derive Fractional Flow Reserve From Diagnostic Coronary Angiography The International Multicenter FAVOR Pilot Study
Tu S, Westra J, Yang J, von Birgelen C, Ferrara A, Pellicano M, Nef H, Tebaldi M, Murasato Y, Lansky A, Barbato E, van der Heijden LC, Reiber JH, Holm NR, Wijns W, Group F. Diagnostic Accuracy of Fast Computational Approaches to Derive Fractional Flow Reserve From Diagnostic Coronary Angiography The International Multicenter FAVOR Pilot Study. JACC Cardiovascular Interventions 2016, 9: 2024-2035. PMID: 27712739, DOI: 10.1016/j.jcin.2016.07.013.Peer-Reviewed Original ResearchMeSH KeywordsAdenosineAdministration, IntravenousAgedArea Under CurveBlood Flow VelocityCardiac CatheterizationChinaComputer SimulationCoronary AngiographyCoronary StenosisCoronary VesselsEuropeFeasibility StudiesFemaleFractional Flow Reserve, MyocardialHumansHyperemiaJapanMaleMiddle AgedModels, CardiovascularMyocardial Perfusion ImagingPilot ProjectsPredictive Value of TestsPrognosisProspective StudiesRadiographic Image Interpretation, Computer-AssistedRegional Blood FlowReproducibility of ResultsROC CurveSeverity of Illness IndexTime FactorsUnited StatesVasodilator AgentsWorkflowConceptsQuantitative flow ratioHyperemic flow velocityReceiver-operating characteristic curveCoronary angiographyDiagnostic accuracyAngiographic percent diameter stenosisDiagnostic coronary angiographyProspective multicenter studyIndependent core laboratoryAdenosine-induced hyperemiaPercent diameter stenosisQuantitative coronary angiographyIntermediate coronary lesionsCharacteristic curveFractional flow reservePositive likelihood ratioOverall diagnostic accuracyNegative likelihood ratioDrug-induced hyperemiaLikelihood ratioCoronary lesionsMulticenter studyDiameter stenosisMaximal hyperemiaFlow reserve
2012
Usefulness of Noninvasive Fractional Flow Reserve Computed from Coronary Computed Tomographic Angiograms for Intermediate Stenoses Confirmed by Quantitative Coronary Angiography
Min JK, Koo BK, Erglis A, Doh JH, Daniels DV, Jegere S, Kim HS, Dunning AM, DeFrance T, Lansky A, Leipsic J. Usefulness of Noninvasive Fractional Flow Reserve Computed from Coronary Computed Tomographic Angiograms for Intermediate Stenoses Confirmed by Quantitative Coronary Angiography. The American Journal Of Cardiology 2012, 110: 971-976. PMID: 22749390, DOI: 10.1016/j.amjcard.2012.05.033.Peer-Reviewed Original ResearchConceptsLesion-specific ischemiaFractional flow reserveCoronary lesionsIntermediate stenosisFlow reservePredictive valueNoninvasive methodComputed Tomographic AngiogramsCoronary computed tomographyNoninvasive fractional flow reserveQuantitative coronary angiographyReceiver operator characteristic curveIntermediate stenosis severityNegative predictive valuePositive predictive valueOperator characteristic curveCoronary angiographyInvasive angiographyMean ageTomographic angiogramBland-Altman analysisStudy groupIschemiaComputed tomographyNovel noninvasive method
2011
Diagnosis of Ischemia-Causing Coronary Stenoses by Noninvasive Fractional Flow Reserve Computed From Coronary Computed Tomographic Angiograms Results From the Prospective Multicenter DISCOVER-FLOW (Diagnosis of Ischemia-Causing Stenoses Obtained Via Noninvasive Fractional Flow Reserve) Study
Koo BK, Erglis A, Doh JH, Daniels DV, Jegere S, Kim HS, Dunning A, DeFrance T, Lansky A, Leipsic J, Min JK. Diagnosis of Ischemia-Causing Coronary Stenoses by Noninvasive Fractional Flow Reserve Computed From Coronary Computed Tomographic Angiograms Results From the Prospective Multicenter DISCOVER-FLOW (Diagnosis of Ischemia-Causing Stenoses Obtained Via Noninvasive Fractional Flow Reserve) Study. Journal Of The American College Of Cardiology 2011, 58: 1989-1997. PMID: 22032711, DOI: 10.1016/j.jacc.2011.06.066.Peer-Reviewed Original ResearchConceptsFractional flow reserveCoronary artery diseaseComputation of FFRInvasive coronary angiographyNoninvasive fractional flow reserveCCTA stenosisCoronary angiographyDiagnostic performanceFlow reserveCCTA dataPredictive valueObstructive coronary artery diseaseMeasurement of FFRComputed Tomographic AngiogramsIschemia-causing stenosisPercent of patientsCoronary artery lesionsIndependent core laboratoryInvasive fractional flow reserveDiscrepancy in the assessment of jailed side branch lesions by visual estimation and quantitative coronary angiographic analysis
Shin D, Koo B, Waseda K, Park KW, Kim H, Corral M, Lansky A, Honda Y, Fearon WF, Fitzgerald PJ. Discrepancy in the assessment of jailed side branch lesions by visual estimation and quantitative coronary angiographic analysis. Catheterization And Cardiovascular Interventions 2011, 78: 720-726. PMID: 22025472, DOI: 10.1002/ccd.23049.Peer-Reviewed Original ResearchConceptsMean minimum lumen diameterQuantitative coronary angiographyFractional flow reserveSide branch lesionsDiameter stenosisSB lesionsIntraclass correlation coefficientBranch lesionsQuantitative coronary angiographic analysisCoronary angiographic analysisMinimum lumen diameterVisual estimationCoronary angiographyPressure trialAngiographic analysisAngiographic assessmentFlow reserveCore laboratoryStenosisReference diameterLesionsLumen diameterLesion lengthFunctional significance