Abstract 12911: Has Low Attenuation Plaque Volume in Coronary Computed Tomographic Angiography an Incremental Value For Prediction of Cardiac Events?

Background: Coronary plaques with low attenuation in coronary computed tomographic angiography (CCTA) are supposed to be indicative of vulnerable plaques and to be particularly prone to plaque rupture and subsequent cardiac events. Nevertheless, plaque characterization is time consuming and technically challenging and it is not known whether it is better than simple plaque counting. Methods: We performed a characterization of 848 coronary segments with noncalcified or mixed plaques in 311 patients undergoing CCTA from October 2004 to September 2006. The volume of low attenuation plaque (LAP, density<30HU) and intermediate attenuation plaque (IAP, 30HU

Keywords:

• Revascularization
• Attenuation
• Cardiology
• Angiography
• Myocardial infarction
• Internal medicine
• Radiology
• Coronary artery disease
• Clinical endpoint
• Medicine
• computed tomographic angiography
• plaque volume

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