Myocardial Strain by Doppler Echocardiography

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

Regional myocardial systolic function during acute myocardial ischemia assessed by strain Doppler echocardiography.

OBJECTIVES We sought to evaluate if echocardiographic strain measurements could detect acute myocardial ischemia, and to compare this new method with myocardial velocity measurements and wall motion score index. BACKGROUND Tissue Doppler echocardiography (TDE) is a promising method for assessing regional myocardial function. However, myocardial velocities measured by tissue Doppler echocardio...

Myocardial strain by Doppler echocardiography. Validation of a new method to quantify regional myocardial function.

BACKGROUND Myocardial strain is a measure of regional deformation, and by definition, negative strain means shortening and positive strain, elongation. This study investigates whether myocardial strain can be measured by Doppler echocardiography as the time integral of regional velocity gradients, using sonomicrometry as reference method. METHODS AND RESULTS In 13 anesthetized dogs, myocardia...

Quantitative assessment of intrinsic regional myocardial deformation by Doppler strain rate echocardiography in humans.

Myocardial Deformation by Doppler Strain Rate Echocardiography in Humans To the Editor: We have read with interest the recent report of Edvardsen et al1 in which left ventricular regional peak systolic strain values measured by ultrasound were correlated with the corresponding strain data extracted by 3-dimensional tagged MRI. The study showed an overall acceptable agreement between the 2 techn...

Regional myocardial work by strain Doppler echocardiography and LV pressure: a new method for quantifying myocardial function.

There is a need for better methods to quantify regional myocardial function. In the present study, we investigated the feasibility of quantifying regional function in terms of a segmental myocardial work index as derived from strain Doppler echocardiography (SDE) and invasive pressure. In 10 anesthetized dogs, we measured left ventricular (LV) pressure by micromanometer and myocardial longitudi...