Left ventricular size determines tissue Doppler-derived longitudinal strain and strain rate

Left ventricular size determines tissue Doppler-derived longitudinal strain and strain rate.

AIMS Tissue Doppler-derived indices of strain (epsilon) and strain rate (SR) have been developed to assess regional cardiac function. However, the effect of left ventricular (LV) size on epsilon and SR has not been studied in depth. The aim of this study was to assess to what extent heart size influence epsilon or SR. METHODS AND RESULTS In 21 anaesthetized pigs ranging from 12.5 to 70.0 kg, ...

Right ventricular involvement in anterior myocardial infarction: a tissue Doppler-derived strain and strain rate study

OBJECTIVE Strain and strain rate imaging is currently the most popular echocardiographic technique that reveals subclinical myocardial damage. There are currently no available data on this imaging method with regard to assessing right ventricular involvement in anterior myocardial infarction. Therefore, we aimed to evaluate right ventricular regional functions using a derived strain and strain ...

Effects of transcatheter aortic valve implantation on left ventricular mass and global longitudinal strain: tissue Doppler and strain evaluation

INTRODUCTION Transcatheter aortic valve implantation is the option of choice for high surgical risk patients suffering from symptomatic aortic stenosis. We aimed to evaluate the influence of baseline global longitudinal strain on left ventricular mass regression after the procedure. METHODS We enrolled 23 patients with pure symptomatic severe aortic stenosis who underwent CoreValve prosthesis...

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

Tissue Doppler, strain, and strain rate echocardiography for the assessment of left and right systolic ventricular function.

Tissue Doppler (TDE), strain, and strain rate echocardiography are emerging real time ultrasound techniques that provide a measure of wall motion. They offer an objective means to quantify global and regional left and right ventricular function and to improve the accuracy and reproducibility of conventional echocardiography studies. Radial and longitudinal ventricular function can be assessed b...