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 ResearchMeSH KeywordsAdultAgedCohort StudiesDiabetes Mellitus, Type 2Endothelium, VascularFemaleHumansImage Processing, Computer-AssistedIschemiaMaleMiddle AgedMyocardial IschemiaMyocardiumNitroglycerinPerfusionVasodilator AgentsConceptsEndothelium-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
2002
Differential effect of 180 degrees and 360 degrees acquisition orbits on the accuracy of SPECT imaging: quantitative evaluation in phantoms.
Liu YH, Lam PT, Sinusas AJ, Wackers FJ. Differential effect of 180 degrees and 360 degrees acquisition orbits on the accuracy of SPECT imaging: quantitative evaluation in phantoms. Journal Of Nuclear Medicine 2002, 43: 1115-24. PMID: 12163639.Peer-Reviewed Original ResearchHeartHumansImage Processing, Computer-AssistedPhantoms, ImagingTomography, Emission-Computed, Single-PhotonAttenuation compensation of cardiac SPECT: A critical look at a confusing world
Wackers F. Attenuation compensation of cardiac SPECT: A critical look at a confusing world. Journal Of Nuclear Cardiology 2002, 9: 438-440. PMID: 12161721, DOI: 10.1067/mnc.2002.125813.Peer-Reviewed Original ResearchCommerceHeart DiseasesHumansImage Processing, Computer-AssistedScattering, RadiationSoftwareTerminology as TopicTomography, Emission-Computed, Single-Photon
2000
Assessment of left ventricular ejection fraction with quantitative gated SPECT: Accuracy and correlation with first-pass radionuclide angiography
Vallejo E, Dione D, Sinusas A, Wackers F. Assessment of left ventricular ejection fraction with quantitative gated SPECT: Accuracy and correlation with first-pass radionuclide angiography. Journal Of Nuclear Cardiology 2000, 7: 461-470. PMID: 11083195, DOI: 10.1067/mnc.2000.107820.Peer-Reviewed Original ResearchConceptsVentricular ejection fractionEjection fractionPatient studiesLeft ventricular ejection fractionExtracardiac activityFirst-pass radionuclide angiographyLarger end-diastolic volumeStress-induced ischemiaEnd-diastolic volumeQuantitative gated SPECTSingle photon emissionAbnormal LVEFNormal LVEFRadionuclide angiographyDiastolic volumeLVEFPerfusion defectsLVEF valuesSame patientHeart sizeLeft ventricleGated SPECTSPECT studiesQGSMean rest
1999
Quantification of regional myocardial wall thickening on electrocardiogram-gated SPECT imaging
Shen M, Liu Y, Sinusas A, Fetterman R, Bruni W, Drozhinin O, Zaret B, Wackers F. Quantification of regional myocardial wall thickening on electrocardiogram-gated SPECT imaging. Journal Of Nuclear Cardiology 1999, 6: 583-595. PMID: 10608585, DOI: 10.1016/s1071-3581(99)90095-8.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsComputer SimulationDiastoleElectrocardiographyHeart VentriclesHumansImage Processing, Computer-AssistedModels, CardiovascularMyocardial InfarctionObserver VariationPhantoms, ImagingPilot ProjectsRadiopharmaceuticalsReproducibility of ResultsSoftwareSystoleTechnetium Tc 99m SestamibiTomography, Emission-Computed, Single-PhotonVentricular Function, LeftVentricular RemodelingVentriculography, First-PassConceptsPrior myocardial infarctionRegional wall thickeningNormal subjectsMyocardial infarctionWall thickeningNormal wall thickeningPilot studyRegional left ventricular functionLeft ventricular functionAbnormal wall thickeningPercent count increaseECG-gated SPECT imagesSingle photon emissionSPECT imagesCardiac cycleLeft ventricular wallReproducibility of interpretationRegional left ventricular wallPrior infarctionCoronary diseaseVentricular functionValidation studyInfarct areaNormal rangeAnatomic areasQuantification of SPECT myocardial perfusion images: Methodology and validation of the Yale-CQ method
Liu Y, Sinusas A, DeMan P, Zaret B, Wackers F. Quantification of SPECT myocardial perfusion images: Methodology and validation of the Yale-CQ method. Journal Of Nuclear Cardiology 1999, 6: 190-203. PMID: 10327104, DOI: 10.1016/s1071-3581(99)90080-6.Peer-Reviewed Original Research
1997
Extracardiac activity complicates quantitative cardiac SPECT imaging using a simultaneous transmission-emission approach.
Heller EN, DeMan P, Liu YH, Dione DP, Zubal IG, Wackers FJ, Sinusas AJ. Extracardiac activity complicates quantitative cardiac SPECT imaging using a simultaneous transmission-emission approach. Journal Of Nuclear Medicine 1997, 38: 1882-90. PMID: 9430462.Peer-Reviewed Original Research
1996
Are 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 ResearchQuantitative comparison of planar and SPECT normal data files of thallium-201, technetium-99m-sestamibi, technetium-99m-tetrofosmin and technetium-99m-furifosmin.
Naruse H, Daher E, Sinusas A, Jain D, Natale D, Mattera J, Makuch R, Wackers FJ. Quantitative comparison of planar and SPECT normal data files of thallium-201, technetium-99m-sestamibi, technetium-99m-tetrofosmin and technetium-99m-furifosmin. Journal Of Nuclear Medicine 1996, 37: 1783-8. PMID: 8917175.Peer-Reviewed Original ResearchQuantitative 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 ResearchMeSH KeywordsDipyridamoleExercise TestFemaleHeartHumansImage Processing, Computer-AssistedMaleMiddle AgedMyocardial InfarctionTechnetium Tc 99m SestamibiThallium RadioisotopesTomography, Emission-Computed, Single-PhotonVasodilator AgentsConceptsDefect 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 imagingRadionuclide detection of myocardial ischemia and myocardial viability: Is the glass half empty or half full?
Wackers F. Radionuclide detection of myocardial ischemia and myocardial viability: Is the glass half empty or half full? Journal Of The American College Of Cardiology 1996, 27: 1598-1600. PMID: 8636542, DOI: 10.1016/0735-1097(96)00101-5.Peer-Reviewed Original ResearchCell SurvivalHeartHumansImage Processing, Computer-AssistedMyocardial IschemiaMyocardiumRadionuclide ImagingThallium Radioisotopes
1993
Factors affecting uniformity in interpretation of planar thallium-201 imaging in a Multicenter trial
Wackers F, Bodenheimer M, Fleiss J, Brown M, Investigators T. Factors affecting uniformity in interpretation of planar thallium-201 imaging in a Multicenter trial. Journal Of The American College Of Cardiology 1993, 21: 1064-1074. PMID: 8459059, DOI: 10.1016/0735-1097(93)90226-q.Peer-Reviewed Original ResearchMeSH KeywordsExercise TestHeartHumansImage Processing, Computer-AssistedMyocardial IschemiaObserver VariationRadionuclide ImagingReproducibility of ResultsThallium RadioisotopesConceptsClinical centersThallium-201 imagesCore laboratoryClinical investigatorsSilent myocardial ischemiaPlanar thallium-201 imagesThallium-201 imagingLack of standardizationCircumferential profile analysisPlanar thallium-201 imagingReproducibility of interpretationMulticenter trialMulticenter studyMyocardial ischemiaMyocardial perfusion imagesSuboptimal reproducibilityInterobserver agreementKappa statisticsPerfusion imagesPoor interlaboratory agreementComputer quantificationObjective criteriaInterlaboratory agreementPoor agreementEffects of standardization