JACC. Cardiovascular imaging
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JACC Cardiovasc Imaging · Dec 2012
Multicenter Study Comparative StudyPopulation-based reference values for 3D echocardiographic LV volumes and ejection fraction.
The purpose of this study was to define age-, sex-, and ethnicity-specific reference values for 3-dimensional echocardiographic (3DE) left ventricular (LV) volumes and LV ejection fraction (LVEF) in a large cohort of European white and Indian Asian subjects. ⋯ These reference values are based on the largest 3DE study performed to date that should facilitate the standardization of the technique and encourage its adoption for the routine assessment of LV volumes and LVEF in the clinical echocardiography laboratory. This study supports the application of ethnicity-specific reference values for indexed LV volumes.
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JACC Cardiovasc Imaging · Dec 2012
Comparative StudyThe napkin-ring sign indicates advanced atherosclerotic lesions in coronary CT angiography.
This study sought to determine the accuracy of plaque pattern assessment by coronary computed tomography angiography (CCTA) to differentiate between early and advanced atherosclerotic lesions as defined by histology. ⋯ The assessment of the plaque pattern improves diagnostic accuracy of CCTA to identify advanced atherosclerotic lesions. The CCTA finding of NRS has a high specificity and high positive predictive value for the presence of advanced lesions.