Myocardial contractility and afterload are important factors for adequate circulation. To
noninvasively assess changes in inotropy and afterload, ascending aortic blood flow was …

To investigate the influence of changes in afterload on Doppler echocardiographic
determination of peak aortic blood velocity, mean acceleration, and systolic velocity integral …

Aortic flow measurement with Doppler echocardiography has become a non-invasive
technique in clinical practice. In the present animal study, we evaluated the flow-derived …

Doppler echocardiographic measurements of blood flow velocity and acceleration in the
ascending aorta have been shown to be useful descriptors of left ventricular (LV) systolic …

We evaluated the ability of Doppler echocardiography to assess left ventricular performance
in six open-chest dogs studied under various conditions. Intravenous infusions of …

To determine if Doppler aortic blood flow velocity measurements could be used
noninvasively to assess the hemodynamic response to vasodilator therapy, 13 patients with …

Objective: To confirm the consistent effects on Doppler-measured aortic blood flow velocity
waveform variables of alterations in left ventricular preload, afterload, and inotropy using …

Myocardial tissue Doppler echocardiography (TDE) has been proposed as a tool for the
assessment of diastolic function. Controversy exists regarding whether TDE measurements …

The relation between catheter-measured and Doppler-derived aortic pressure gradients was
examined in 8 open-chest dogs. A snare was placed around the proximal ascending aorta …

A theoretical formula for calculation of peak dP/dt was derived using parameters obtained
from continuous wave Doppler echocardiography signals of aortic blood flow. The direct …