简介：ObjectivesTocomparethedifferentpatternsofcoronaryarterycalcification(CAC)inacuteandchroniccoronarysyndromesutilizingelectronbeamcomputedtomography.BackgroundPathologic,angiographic,andintracoronaryultrasoundstudiesrevealedsharpdifferencesintheplaquemorphologybetweenpatientswithacuteversuschroniccoronarysyndromes.Whethertherearedifferentpatternsofcoronaryarterycalcificationinpatientswithstableanginapectoris(SAP)andinthosewithunstableanginapectoris(UAP)oracutemyocardialinfarction(AMI),however,remainsunclear.MethodsTwohundredandsixty-fourpatients,including67withSAP,94withUAPand103withAMIwerestudiedwithelectronbeamcomputedtomographyforanalysisofcoronaryarterycalcificationandwithselectivecoronaryangiographyfordeterminationofatheroscleroticlesions.CACprevalenceandcalciumscorewerecomparedamongthreegroups,andrelationofCACtotheseverityofatheroscleroticdiseaseintheSAPandUAP