Clinical implications of velocity vector imaging-based two dimensional strain imaging for the evaluation of left ventricular systolic functions.

Two-dimensional (2D) echocardiography is the most common imaging modality used to assess left ventricular (LV) myocardial function. Although the studies revealed useful conclusions, there are some limitations with the conventional measurement of ejection fraction. Two dimensional (2D) strain imaging is newer echocardiographic technique which is utilized for the evaluation of quantitative regional ventricular functions. Velocity vector imaging based- 2D strain imaging is the most recent technology with a few advantages sourced by its software. This review introduces a novel 2D strain imaging technology, explains its fundamental concepts and discusses clinical applications with all the major advantages and limitations.