Strain Assessment of Myocardial Function

Echocardiographic assessment of myocardial strain.

Echocardiographic strain imaging, also known as deformation imaging, has been developed as a means to objectively quantify regional myocardial function. First introduced as post-processing of tissue Doppler imaging velocity converted to strain and strain rate, strain imaging has more recently also been derived from digital speckle tracking analysis. Strain imaging has been used to gain greater ...

Quantification of Regional Myocardial Function following Acute Myocardial Infarction by Ultrasonic Strain Rate and Strain Imaging

Objectives: The rapid diagnosis and early risk stratification of patients presenting with acute myocardial infarction (AMI) is important. In experimental setting ultrasonic strain rate (SR) and strain (S) have been shown to identify changes in deformation predictive of ischemia. We sought to evaluate and compare regional myocardial function at “the risk zone” (ARZ) supplied by the culprit coron...

Strain Assessment of Myocardial Function: A Better Approach or Just Fun and Games?

Impact of myocardial structure and function postinfarction on diastolic strain measurements: implications for assessment of myocardial viability.

We sought to assess the role of regional diastolic function by Doppler echocardiography in predicting myocardial viability. Sixteen dogs underwent left anterior descending coronary artery (n = 8) or circumflex (n = 8) occlusion. All animals were imaged at baseline and 1-8 wk postinfarction (post-MI). In 10 dogs, invasive hemodynamic monitoring with a conductance catheter placed in the left vent...

Early impairment of myocardial function in systemic sclerosis: non-invasive assessment by Doppler myocardial and strain rate imaging.

BACKGROUND Aim of the present study was to analyze both left (LV) and right ventricular (RV) myocardial function in patients with Systemic Sclerosis (SSc), and their relation to other instrumental features of the disease. METHODS AND RESULTS Twenty-five healthy subjects and 23 age- and sex-comparable asymptomatic patients classified as having either diffuse (11 patients) or limited form (12 p...