3D echocardiography volume-time curves correlated well with cardiac MRI for systole (r=0.62) and diastole (r=0.43), and derived peak emptying and filling rates decreased significantly with age.
Observational (n=66)
No
Does 3D echocardiography accurately measure left ventricular volume-time curves compared to cardiac MRI, and how do these parameters change with age?
3D echocardiography-derived volume-time curves correlate well with cardiac MRI and can detect age-related declines in peak emptying and filling rates despite normal ejection fraction.
Effect estimate: r=0.62 (systole), r=0.43 (diastole)
p-value: p=<0.0001 (systole), 0.0025 (diastole)
Background: 3D echocardiography derived volumetric data can be used to generate left ventricular volumetime curves and has the potential to elucidate aspects of contractility, systolic and diastolic function in normal and disease states. We sought to establish the validity and reproducibility of these volume-time curves and apply novel parameters derived from these curves to a clinical population.
William L Duvall Jeffrey Bander (Tue,) conducted a observational in Evaluation of left ventricular function (n=66). 3D echocardiography vs. Cardiac MRI was evaluated on Correlation of systolic and diastolic slopes of volume-time curves between 3D echocardiography and cardiac MRI (r=0.62 (systole), r=0.43 (diastole), p=<0.0001 (systole), 0.0025 (diastole)). 3D echocardiography volume-time curves correlated well with cardiac MRI for systole (r=0.62) and diastole (r=0.43), and derived peak emptying and filling rates decreased significantly with age.