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 ResearchConceptsClinical 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