Wednesday, March 11, 2015

Usefulness of Regional Distribution of Coronary Artery Calcium to Improve the Prediction of All-Cause Mortality.

The prognostic ability of the Agatston score was found to be improved by determining how many vessels had coronary artery calcium (CAC). Compared with single vessel involvement, 2-vessel CAC increased mortality (HR=1.6) and 3-vessel involvement even more (HR=1.99). Left main CAC and diffuse CAC were also associated with increased mortality.  (Am J Cardiol. 2015 Feb 12)
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Wednesday, February 11, 2015

Atherosclerotic Plaque Characteristics by CT Angiography Identify Coronary Lesions That Cause Ischemia: A Direct Comparison to Fractional Flow Reserve.

Percent vessel stenosis of the coronary arteries is not a uniform predictor of myocardial ischemia. Other important factors include the atherosclerotic plaque characteristics of aggregate plaque volume percent, positive remodeling, low attenuation, and spotty calcification.  (JACC Cardiovasc Imaging. 2015 Jan;8(1):1-10)
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Coronary artery calcium and incident cerebrovascular events in an asymptomatic cohort. The MESA Study.

The presence of coronary artery calcium is an independent predictor of cerebrovascular events.  (JACC Cardiovasc Imaging. 2014 Nov;7(11):1108-15.)
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