Abstract #1291

The Association of the Extent of Myocardial Infarction (MI) Detected by Magnetic Resonance Imaging (MRI) and the Quantification of Coronary Calcium by Computed Tomography (CT)

Gyda S. Karlsdottir¹, Sigurdur Sigurdsson¹, Thor Aspelund¹, Gudny Eiriksdottir¹, Jie J. Cao², Lenor Launer³, Tamara B. Harris³, Robert Detrano⁴, Andrew Arai⁵, Vilmundur Gudnason⁶

¹Icelandic Heart Association Research Institute, Kopavogur, Iceland; ²National Heart, Lung and Blood Institute, Bethesda, United States; ³IRP, National Institute on Aging, Bethesda, United States; ⁴University of California Irvine,, Irvine, United States; ⁵IRP, National Heart, Lung and Blood Institute, Bethesda, United States; ⁶Icelandic Heart Association Research Institute, Kopavogur, Iceland

Purpose of our study was to investigate the association of the extent of MI localized by gadolinium enhanced MRI, and the quantity of calcium in the coronary arteries detected with CT. Of the 674 subject, 21% had evidence of MI. Subjects with MI in all three coronary distributions had higher coronary calcium score (CCS), compared to those with MI in only one. Those with only one or two infarcted segments had significantly lower CCS than those with infarct in three or more segments. The relationship between the extent of MI and quantity of coronary calcium is significant and strong.