High-Frame-Rate Speckle-Tracking Echocardiography

Echo speckle imaging of blood particles with high-frame-rate echocardiography

Cardiac blood flow patterns such as the vortex flow pattern inside the left ventricle have been studied to provide new information for the diagnosis of the pumping function of the human heart. Complex blood flow is visualized by imaging echo speckles of blood particles because the speckle-like texture translates to the motion of blood particles. We proposed an imaging method for echo speckles o...

Left ventricular untwisting rate by speckle tracking echocardiography.

BACKGROUND Recent studies validated the measurement of left ventricular (LV) untwisting rate (UR) by speckle tracking echocardiography. A few reports suggest that it may provide additional noninvasive insight into LV diastolic function. METHODS AND RESULTS Simultaneous echocardiographic imaging and LV pressure measurements (7F Millar catheters) were performed in 8 adult dogs. Loading conditio...

myocardial strain and strain rate imaging: comparison between doppler derived strain imaging and speckle tracking echocardiography

Analysing high frame-rate camera tracking

High frame-rate offers benefits of robust and accurate camera tracking for rapid motion. However, the benefits are generally understated arguing that it is not possible to operate on high frame-rates due to stringent processing budgets and that even today 1060Hz is treated as a standard real-time frame-rate range. How exactly does the choice of a given frame-rate varies as computational budget ...

Cardiac Mechanics Evaluated by Speckle Tracking Echocardiography

Natural myocardial markers, or speckles, originated from constructive and destructive interference of ultrasound in the tissues may provide early diagnosis of myocardial changes and be used in the prediction of some cardiac events. Due to its relatively temporal stability, speckles can be tracked by dedicated software along the cardiac cycle, enabling the analysis of the systolic and diastolic ...