2024
Clinical phenotypes among patients with normal cardiac perfusion using unsupervised learning: a retrospective observational study
Miller R, Bednarski B, Pieszko K, Kwiecinski J, Williams M, Shanbhag A, Liang J, Huang C, Sharir T, Hauser M, Dorbala S, Di Carli M, Fish M, Ruddy T, Bateman T, Einstein A, Kaufmann P, Miller E, Sinusas A, Acampa W, Han D, Dey D, Berman D, Slomka P. Clinical phenotypes among patients with normal cardiac perfusion using unsupervised learning: a retrospective observational study. EBioMedicine 2024, 99: 104930. PMID: 38168587, PMCID: PMC10794922, DOI: 10.1016/j.ebiom.2023.104930.Peer-Reviewed Original ResearchMyocardial infarctionMyocardial perfusion imagingBlood InstituteNational HeartPharmacologic stressExternal testing cohortNormal imaging resultsRetrospective observational studyCoronary artery diseasePrevious myocardial infarctionRisk of deathNormal perfusion scanBritish Heart FoundationNational InstituteCluster 4 patientsDistinct phenotypesCardiovascular riskArtery diseaseRisk stratificationPerfusion scanNormal perfusionImaging featuresNormal scansMPI patientsHeart Foundation
2023
Improvement in cardiac function and regional LV strain following intramyocardial injection of a theranostic hydrogel early postmyocardial infarction in a porcine model
Avendaño R, Midgett D, Melvinsdottir I, Thorn S, Uman S, Pickell Z, Lee S, Liu Z, Mamarian M, Duncan J, Spinale F, Burdick J, Sinusas A. Improvement in cardiac function and regional LV strain following intramyocardial injection of a theranostic hydrogel early postmyocardial infarction in a porcine model. Journal Of Applied Physiology 2023, 135: 405-420. PMID: 37318987, PMCID: PMC10538987, DOI: 10.1152/japplphysiol.00342.2022.Peer-Reviewed Original ResearchConceptsMyocardial infarctionIntramyocardial deliveryLV hemodynamicsControl groupFunctional indexEarly post-myocardial infarctionSystolic functional indicesMyocardial performance indexAnterolateral myocardial infarctionLeft anterior descendingPressure-volume loop areaLeft ventricular remodelingGlobal LV functionLV functional changesPost-myocardial infarctionSupply/demand ratioRegional LV strainHydrogel groupTei indexEjection fractionHeart failureAnterior descendingCircumflex arteryLV functionAortic pressure
2020
Coronary Computed Tomography Angiography Compared With Single Photon Emission Computed Tomography Myocardial Perfusion Imaging as a Guide to Optimal Medical Therapy in Patients Presenting With Stable Angina: The RESCUE Trial
Stillman A, Gatsonis C, Lima J, Liu T, Snyder B, Cormack J, Malholtra V, Schnall M, Udelson J, Hoffmann U, Woodard P, Kim M, Hegde V, Kenny, Afaq M, Clouse M, Malhotra V, Cole, Al‐Khori F, Scherer M, Rothenberg F, Kirsch J, Shah A, Quyyumi A, Engberding N, Becker C, Li D, Pantelic M, Duerinckx A, Martin, Schrank J, Zachariah, Jacob R, Borges A, Roberge E, Truong Q, Edelman R, Akers S, Marsh K, Kemp, Reingold J, Chilakapati V, Osborne J, Lui K, Gomes A, Bajpai A, del Rio J, Singh, Thompson B, Rivard A, Jha S, Mavromatis K, Woodard P, Sinusas A. Coronary Computed Tomography Angiography Compared With Single Photon Emission Computed Tomography Myocardial Perfusion Imaging as a Guide to Optimal Medical Therapy in Patients Presenting With Stable Angina: The RESCUE Trial. Journal Of The American Heart Association 2020, 9: e017993. PMID: 33283579, PMCID: PMC7955393, DOI: 10.1161/jaha.120.017993.Peer-Reviewed Original ResearchConceptsMajor adverse cardiovascular eventsOptimal medical therapyAcute myocardial infarctionMedical therapyStable anginaMyocardial perfusion imagingMyocardial infarctionSingle photon emissionNegative CCTAHazard ratioRescue trialPerfusion imagingFirst major adverse cardiovascular eventTomography myocardial perfusion imagingSPECT myocardial perfusion imagingAdverse cardiovascular eventsOutcomes of patientsTomography myocardial perfusionFirst imaging testPhoton emissionCCTA armPositive CCTACardiovascular eventsSegment involvementOutcome trials
2019
Molecular Imaging of the Heart
Boutagy NE, Feher A, Alkhalil I, Umoh N, Sinusas AJ. Molecular Imaging of the Heart. 2019, 9: 477-533. PMID: 30873600, DOI: 10.1002/cphy.c180007.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsCardiovascular diseaseRisk stratificationCardiovascular molecular imagingMultimodality cardiovascular imagingIschemic heart failureMolecular imagingMolecular imaging targetsPositron emission tomographySingle photon emissionNumerous cardiovascular diseasesClinical molecular imagingEjection fractionHeart failureMedical therapySystemic diseaseMyocardial infarctionPathophysiological changesCardiac functionEarly diagnosisDisease processCardiac arrhythmiasEmission tomographyCardiovascular imagingImaging strategiesPhoton emission
2007
8.18 Left ventricular dysfunction post myocardial infarction does not alter the biodistribution, or clearance kinetics of a targeted radiotracer for imaging angiogenesis
Weyman C, Dione D, Sahul Z, Dobrucki W, Kalinowski L, Mekkaoui C, Haramis H, Sinusas A. 8.18 Left ventricular dysfunction post myocardial infarction does not alter the biodistribution, or clearance kinetics of a targeted radiotracer for imaging angiogenesis. Journal Of Nuclear Cardiology 2007, 14: s62. DOI: 10.1016/j.nuclcard.2006.12.245.Peer-Reviewed Original Research
2004
Evaluation of myocardial matrix metalloproteinase (MMP) mediated post-MI remodeling with a novel radiolabeled MMP inhibitor
Su H, Spinale F, Dobrucki1 L, Chow C, Sweterlitsch S, Hu X, Bourke B, Cavaliere P, Hua J, Azure M, Edwards D, Sinusas A. Evaluation of myocardial matrix metalloproteinase (MMP) mediated post-MI remodeling with a novel radiolabeled MMP inhibitor. Journal Of Nuclear Cardiology 2004, 11: s20. DOI: 10.1016/j.nuclcard.2004.06.063.Peer-Reviewed Original ResearchMyocardial infarctionPost-MI remodelingPost-myocardial infarctionMMP activationMMP inhibitorsControl groupSitu zymographyMyocardial matrix metalloproteinasesMI regionMin post injectionControl miceMI miceVentricular remodelingPost-MIMI groupMurine modelNew therapiesMatrix metalloproteinaseMMP activityMatrix metalloproteinasesShort-axis slicesMI areaPost injectionMyocardial retentionMice
2000
Severe regional ischemia alters coronary flow reserve in the remote perfusion area
Wu J, Yun J, Dione D, Heller E, Deckelbaum L, Sinusas A. Severe regional ischemia alters coronary flow reserve in the remote perfusion area. Journal Of Nuclear Cardiology 2000, 7: 43-52. PMID: 10698234, DOI: 10.1067/mnc.2000.99189.Peer-Reviewed Original ResearchConceptsLAD coronary flow reserveCoronary flow reserveLCX stenosisFlow reserveImpairment of CFRStenosis severityRemote nonischemic regionsRate-pressure productRegional myocardial dysfunctionDoppler flow probesTransstenotic pressure gradientOpen-chest dogsAcute canine modelIschemic dysfunctionAnterior descendingIntracoronary injectionMyocardial dysfunctionProximal LCXCoronary stenosisMyocardial infarctionAcute ischemiaProgressive impairmentPerfusion areaRegional myocardial flowTransstenotic gradient
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 areas
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 imagingAssessment of reperfusion after acute myocardial infarction: Is there a role for acute technetium 99m-teboroxime imaging?
Sinusas A. Assessment of reperfusion after acute myocardial infarction: Is there a role for acute technetium 99m-teboroxime imaging? Journal Of Nuclear Cardiology 1996, 3: 82-85. PMID: 8799231, DOI: 10.1016/s1071-3581(96)90027-6.Peer-Reviewed Original Research
1994
One-year prognosis of patients with normal planar or single-photon emission computed tomographic technetium 99m-labeled sestamibi exercise imaging
Raiker K, Sinusas A, Wackers F, Zaret B. One-year prognosis of patients with normal planar or single-photon emission computed tomographic technetium 99m-labeled sestamibi exercise imaging. Journal Of Nuclear Cardiology 1994, 1: 449-456. PMID: 9420729, DOI: 10.1007/bf02961599.Peer-Reviewed Original ResearchConceptsNondiagnostic exercise electrocardiogramsPositive exercise electrocardiogramExercise electrocardiogramPrognostic significanceSingle photon emissionHigher cardiac event rateCardiac event rateChest pain syndromeNegative exercise electrocardiogramNonfatal myocardial infarctionOne-year prognosisPositive stress electrocardiogramCoronary artery diseaseFavorable prognostic significanceMyocardial perfusion imagingStress perfusion imagesCardiac causesCardiac eventsPain syndromeArtery diseaseConsecutive patientsExercise SPECTMyocardial infarctionFavorable outcomeStress electrocardiogramEffects of altered left ventricular geometry on quantitative technetium 99m sestamibi defect size in humans: Perfusion imaging during coronary angioplasty
Haronian H, Sinusas A, Remetz M, Brennan J, Cabin H, Zaret B, Wackers F. Effects of altered left ventricular geometry on quantitative technetium 99m sestamibi defect size in humans: Perfusion imaging during coronary angioplasty. Journal Of Nuclear Cardiology 1994, 1: 150-158. PMID: 9420682, DOI: 10.1007/bf02984087.Peer-Reviewed Original ResearchConceptsPercutaneous transluminal coronary angioplastyLeft ventricular geometryAltered left ventricular geometryCoronary angioplastyRegional wall motionVentricular geometryEnd-diastolic imagesMyocardial perfusionExercise-induced myocardial ischemiaAbnormal regional wall motionMyocardial risk areaTransluminal coronary angioplastyQuantitative defectsExperimental animal modelsPlanar myocardial perfusionMyocardial perfusion imagingQuantitative technetiumResultsNine patientsVentricular functionCoronary arteryMyocardial infarctionVessel occlusionMyocardial ischemiaPerfusion defectsWall motion
1984
Pathoanatomic correlates of regional left ventricular wall motion assessed by equilibrium radionuclide angiocardiography: A postmortem correlation
Sinusas A, Hardin N, Clements J, Wackers F. Pathoanatomic correlates of regional left ventricular wall motion assessed by equilibrium radionuclide angiocardiography: A postmortem correlation. The American Journal Of Cardiology 1984, 54: 975-981. PMID: 6496360, DOI: 10.1016/s0002-9149(84)80128-9.Peer-Reviewed Original ResearchConceptsAbnormal regional wall motionRegional wall motionPostmortem findingsPathoanatomic correlatesEquilibrium radionuclideLeft bundle branch blockNormal regional wall motionGross myocardial lesionsLeft ventricular wall motionBundle branch blockLeft ventricular segmentsRegional left ventricular wall motionVentricular wall motionFalse-negative segmentsCoronary arterySevere stenosisMyocardial infarctionNontransmural infarctionBranch blockVentricular segmentsWall motionMyocardial lesionsPatientsPredictive valueAbnormal segments