2011
Use of Medical Imaging Procedures With Ionizing Radiation in Children: A Population-Based Study
Dorfman AL, Fazel R, Einstein AJ, Applegate KE, Krumholz HM, Wang Y, Christodoulou E, Chen J, Sanchez R, Nallamothu BK. Use of Medical Imaging Procedures With Ionizing Radiation in Children: A Population-Based Study. JAMA Pediatrics 2011, 165: 458-464. PMID: 21199972, PMCID: PMC3686496, DOI: 10.1001/archpediatrics.2010.270.Peer-Reviewed Original ResearchConceptsDiagnostic imaging proceduresTomographic scanImaging proceduresRetrospective cohort analysisPopulation-based ratesPediatric populationPlain radiographyCohort analysisHigh dosesMedical diagnostic imaging proceduresStudy periodAppropriate useChildrenHigh rateMedical imaging proceduresScansFrequent useHealth care marketUS health care marketYearsPatientsInfantsPopulationCare marketUnitedHealthcare
2010
Cumulative Exposure to Ionizing Radiation From Diagnostic and Therapeutic Cardiac Imaging Procedures A Population-Based Analysis
Chen J, Einstein AJ, Fazel R, Krumholz HM, Wang Y, Ross JS, Ting HH, Shah ND, Nasir K, Nallamothu BK. Cumulative Exposure to Ionizing Radiation From Diagnostic and Therapeutic Cardiac Imaging Procedures A Population-Based Analysis. Journal Of The American College Of Cardiology 2010, 56: 702-711. PMID: 20619569, PMCID: PMC2952402, DOI: 10.1016/j.jacc.2010.05.014.Peer-Reviewed Original ResearchConceptsCardiac imaging proceduresCumulative effective doseMSv/yearEffective dosesImaging proceduresEffective doseRadiation exposureGeneral populationAnnual population-based ratesCardiac computed tomography (CT) studiesMean cumulative effective dosePopulation-based annual rateCumulative effective dosesMyocardial perfusion imagingComputed tomography studyPopulation-based ratesSubstantial radiation exposureCumulative dosesAdministrative claimsMyocardial perfusionPhysician's officeCumulative exposurePerfusion imagingPatientsTomography study
2009
Exposure to Low-Dose Ionizing Radiation from Medical Imaging Procedures
Fazel R, Krumholz HM, Wang Y, Ross JS, Chen J, Ting HH, Shah ND, Nasir K, Einstein AJ, Nallamothu BK. Exposure to Low-Dose Ionizing Radiation from Medical Imaging Procedures. New England Journal Of Medicine 2009, 361: 849-857. PMID: 19710483, PMCID: PMC3707303, DOI: 10.1056/nejmoa0901249.Peer-Reviewed Original ResearchConceptsCumulative effective dosesCumulative effective doseEffective dosesEffective doseMean cumulative effective doseImaging proceduresLow-dose ionizing radiationPopulation-based ratesMedian effective doseOutpatient settingGeneral populationHigh dosesUtilization dataDosesEnrolleesStudy periodRadiation exposureNuclear imagingDoseAnnual effective dosesMedical imaging proceduresUnited StatesExposureHealth care marketYears
2007
Opening of Specialty Cardiac Hospitals and Use of Coronary Revascularization in Medicare Beneficiaries
Nallamothu BK, Rogers MA, Chernew ME, Krumholz HM, Eagle KA, Birkmeyer JD. Opening of Specialty Cardiac Hospitals and Use of Coronary Revascularization in Medicare Beneficiaries. JAMA 2007, 297: 962-968. PMID: 17341710, DOI: 10.1001/jama.297.9.962.Peer-Reviewed Original ResearchMeSH KeywordsAgedAngioplasty, Balloon, CoronaryCardiac Care FacilitiesCardiology Service, HospitalCatchment Area, HealthCoronary Artery BypassHealth Care SurveysHealth Services Needs and DemandHospitals, GeneralHumansLinear ModelsMedicareMyocardial RevascularizationPractice Patterns, Physicians'Program DevelopmentReimbursement, IncentiveUnited StatesUtilization ReviewConceptsHospital referral regionsPopulation-based ratesSpecialty cardiac hospitalsCardiac hospitalTotal revascularizationCoronary revascularizationGeneral HospitalMedicare beneficiariesCardiac programAnnual population-based ratesAcute myocardial infarctionCost-efficient careMyocardial infarctionAdjusted ratesRevascularizationReferral regionsProcedure utilizationHospitalCABGPCIPatientsLinear regression modelsRegression modelsRelative increaseHealth care market