2009
Cardiac Outcomes After Screening for Asymptomatic Coronary Artery Disease in Patients With Type 2 Diabetes : The DIAD Study: A Randomized Controlled Trial
Young LH, Wackers FJ, Chyun DA, Davey JA, Barrett EJ, Taillefer R, Heller GV, Iskandrian AE, Wittlin SD, Filipchuk N, Ratner RE, Inzucchi SE, Investigators F. Cardiac Outcomes After Screening for Asymptomatic Coronary Artery Disease in Patients With Type 2 Diabetes : The DIAD Study: A Randomized Controlled Trial. JAMA 2009, 301: 1547-1555. PMID: 19366774, PMCID: PMC2895332, DOI: 10.1001/jama.2009.476.Peer-Reviewed Original ResearchConceptsCoronary artery diseaseType 2 diabetesNonfatal myocardial infarctionAsymptomatic coronary artery diseaseMyocardial perfusion imagingCardiac event rateMyocardial infarctionCardiac deathMPI defectsCardiac outcomesEvent ratesScreened groupArtery diseaseSymptoms of CADRadionuclide myocardial perfusion imagingAsymptomatic Diabetics (DIAD) studyHigh cardiac riskLow event ratesPositive predictive valueDetection of ischemiaPrimary medical preventionCoronary revascularizationDiabetes clinicIdentifies patientsControlled Trials
2006
Value of peripheral vascular endothelial function in the detection of relative myocardial ischemia in asymptomatic type 2 diabetic patients who underwent myocardial perfusion imaging
Papaioannou GI, Kasapis C, Seip RL, Grey NJ, Katten D, Wackers FJ, Inzucchi SE, Engel S, Taylor A, Young LH, Chyun DA, Davey JA, Iskandrian AE, Ratner RE, Robinson EC, Carolan S, Heller GV. Value of peripheral vascular endothelial function in the detection of relative myocardial ischemia in asymptomatic type 2 diabetic patients who underwent myocardial perfusion imaging. Journal Of Nuclear Cardiology 2006, 13: 362-368. PMID: 16750781, DOI: 10.1016/j.nuclcard.2006.01.022.Peer-Reviewed Original ResearchConceptsEndothelium-dependent vasodilationEndothelium-independent vasodilationCoronary artery diseaseMyocardial perfusion imagingRelative myocardial ischemiaAsymptomatic patientsEndothelial functionNegative predictive valueMyocardial ischemiaAsymptomatic type 2 diabetic patientsExclusion of CADPredictive valueAdenosine myocardial perfusion imagingPeripheral vascular endothelial functionType 2 diabetic patientsType 2 diabetes mellitusHigh negative predictive valueAsymptomatic Diabetics (DIAD) studyBrachial artery ultrasonographyVascular endothelial functionDetection of ischemiaEDV responseRelative ischemiaEndothelial dysfunctionOvert atherosclerosis
2004
Randomized, Controlled Dose-Ranging Study of the Selective Adenosine A2A Receptor Agonist Binodenoson for Pharmacological Stress as an Adjunct to Myocardial Perfusion Imaging
Udelson J, Heller G, Wackers F, Chai A, Hinchman D, Coleman P, Dilsizian V, DiCarli M, Hachamovitch R, Johnson J, Barrett R, Gibbons R. Randomized, Controlled Dose-Ranging Study of the Selective Adenosine A2A Receptor Agonist Binodenoson for Pharmacological Stress as an Adjunct to Myocardial Perfusion Imaging. Circulation 2004, 109: 457-464. PMID: 14734517, DOI: 10.1161/01.cir.0000114523.03312.7d.Peer-Reviewed Original ResearchConceptsReversible perfusion defectsDose-related reductionAdenosine receptor stimulationSide effectsPharmacological stressPerfusion defectsReceptor stimulationFrequent side effectsSubjective side effectsDose-Ranging StudyMyocardial perfusion imagingAdenosine A2A receptorsSingle photon emissionChest painCoronary vasodilationCrossover trialBinodenosonA2A receptorsPerfusion imagingSelective agonismRandom orderSeverityKappa valuesSimilar degreePhoton emission
2003
Prognostic significance of ischemic electrocardiographic changes during adenosine infusion in patients with normal myocardial perfusion imaging
Abbott B, Afshar M, Berger A, Wackers F. Prognostic significance of ischemic electrocardiographic changes during adenosine infusion in patients with normal myocardial perfusion imaging. Journal Of Nuclear Cardiology 2003, 10: 9-16. PMID: 12569326, DOI: 10.1067/mnc.2002.127625.Peer-Reviewed Original ResearchConceptsNormal myocardial perfusion imagingAdenosine myocardial perfusion imagingST-segment depressionMyocardial perfusion imagingIschemic ECG changesCardiac eventsECG changesAdenosine infusionCardiac deathPrognostic significanceECG groupNormal myocardial perfusion imagesBaseline electrocardiographic abnormalitiesAdverse cardiac eventsIschemic electrocardiographic changesNonfatal myocardial infarctionSubsequent cardiac eventsFuture cardiac eventsNormal myocardial perfusionSex-matched groupPerfusion imagesECG evidenceElectrocardiographic abnormalitiesIndependent predictorsElectrocardiographic changes
2002
Pharmacologic stress perfusion imaging with adenosine: Role of simultaneous low-level treadmill exercise
Samady H, Wackers FJ, Joska TM, Zaret BL, Jain D. Pharmacologic stress perfusion imaging with adenosine: Role of simultaneous low-level treadmill exercise. Journal Of Nuclear Cardiology 2002, 9: 188-196. PMID: 11986564, DOI: 10.1067/mnc.2002.119973.Peer-Reviewed Original ResearchConceptsLow-level treadmill exerciseMyocardial perfusion imagingTreadmill exerciseElectrocardiographic changesAdverse effectsAdenosine myocardial perfusion imagingSestamibi single-photon emissionPharmacologic stress myocardial perfusion imagingStress myocardial perfusion imagingIschemic electrocardiographic changesLow-level exerciseMore adverse effectsUnfavorable side effectsSingle photon emissionAdenosine studyAdenosine TcMore patientsMyocardial ischemiaHemodynamic responseStress perfusionSide effectsPerfusion imagingTracer uptakePatientsMPI studies
1997
Relevance of Increased Lung Thallium Uptake on Stress Imaging in Patients With Unstable Angina and Non-Q Wave Myocardial Infarction: Results of the Thrombolysis in Myocardial Infarction (TIMI)-IIIB Study fn1fn1This study was supported in part by a research grant from Mallinckrodt Medical Inc., Saint Louis, Missouri.
Jain D, Thompson B, Wackers F, Zaret B, Investigators F. Relevance of Increased Lung Thallium Uptake on Stress Imaging in Patients With Unstable Angina and Non-Q Wave Myocardial Infarction: Results of the Thrombolysis in Myocardial Infarction (TIMI)-IIIB Study fn1fn1This study was supported in part by a research grant from Mallinckrodt Medical Inc., Saint Louis, Missouri. Journal Of The American College Of Cardiology 1997, 30: 421-429. PMID: 9247514, DOI: 10.1016/s0735-1097(97)00164-2.Peer-Reviewed Original ResearchConceptsLung/heart ratioAdverse cardiac eventsNon-Q-wave myocardial infarctionCoronary artery diseaseCardiac eventsPerfusion abnormalitiesMyocardial infarctionUnstable anginaArtery diseaseStress-induced left ventricular dysfunctionHigher cardiac event rateLeft ventricular ejection fractionAggressive interventional managementHigher revascularization rateLung thallium uptakeCardiac event rateTotal exercise timeFrequency of anginaLeft ventricular dysfunctionST-segment depressionLower exercise capacityVentricular ejection fractionPrevious myocardial infarctionMyocardial perfusion abnormalitiesNormal myocardial perfusion
1996
Quantitative comparison of single-isotope and dual-isotope stress-rest single-photon emission computed tomographic imaging for reversibility of defects
Siebelink H, Natale D, Sinusas A, Wackers F. Quantitative comparison of single-isotope and dual-isotope stress-rest single-photon emission computed tomographic imaging for reversibility of defects. Journal Of Nuclear Cardiology 1996, 3: 483-493. PMID: 8989673, DOI: 10.1016/s1071-3581(96)90058-6.Peer-Reviewed Original ResearchConceptsDefect reversibilitySingle photon emissionDual-isotope SPECTNormal databaseStress-rest single-photon emissionTechnetium 99m-labeled sestamibiStress-induced myocardial ischemiaStress single-photon emissionPerfusion defect reversibilityPrior myocardial infarctionDefect sizeRest/stressSingle-isotope imagingMyocardial infarctionThallium SPECTMyocardial ischemiaIndividual patientsMyocardial perfusionThallium-201PatientsSestamibiCircumferential count profilesTomographic imagingImaging protocolDual-isotope imagingAre separate normal data files required for quantitative pharmacologic stress radionuclide myocardial perfusion imaging?
Wackers F. Are separate normal data files required for quantitative pharmacologic stress radionuclide myocardial perfusion imaging? Journal Of Nuclear Cardiology 1996, 3: s31-s40. PMID: 8989685, DOI: 10.1016/s1071-3581(96)90206-8.Peer-Reviewed Original Research
1995
Preoperative Dipyridamole Thallium Imaging and Ambulatory Electrocardiographic Monitoring as a Predictor of Perioperative Cardiac Events and Long-term Outcome
Fleisher L, Rosenbaum S, Nelson A, Jain D, Wackers F, Zaret B. Preoperative Dipyridamole Thallium Imaging and Ambulatory Electrocardiographic Monitoring as a Predictor of Perioperative Cardiac Events and Long-term Outcome. Anesthesiology 1995, 83: 906-917.. PMID: 7486176, DOI: 10.1097/00000542-199511000-00003.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overDipyridamoleElectrocardiography, AmbulatoryFemaleHeart DiseasesHumansIntraoperative ComplicationsMaleMiddle AgedPostoperative ComplicationsPredictive Value of TestsPreoperative CarePrognosisProspective StudiesRadionuclide AngiographySensitivity and SpecificitySurvival AnalysisThallium RadioisotopesVasodilator AgentsConceptsPerioperative cardiac eventsPredictive valueDipyridamole thalliumCardiac eventsPreoperative dipyridamole thallium imagingLong-term cardiac survivalGreatest likelihood ratioNoncardiac surgery patientsPerioperative cardiac morbidityDipyridamole-thallium imagingLong-term mortalityLong-term prognosisAmbulatory electrocardiographic monitoringShort-term outcomesLong-term outcomesLikelihood ratioPositive predictive valueLog-rank statisticsNuclear cardiology laboratoryCardiac morbidityNoncardiac surgerySurgery patientsThallium imagingCardiac survivalElectrocardiographic monitoring
1991
Adenosine or dipyridamole: Which is preferred for myocardial perfusion imaging?
Wackers F. Adenosine or dipyridamole: Which is preferred for myocardial perfusion imaging? Journal Of The American College Of Cardiology 1991, 17: 1295-1296. PMID: 2016446, DOI: 10.1016/s0735-1097(10)80138-x.Peer-Reviewed Original Research