Speckle Tracking-Derived Longitudinal Strain: Validation and Influence of Scanner Settings

Speckle tracking-based strain analysis is an evolving technique for the assessment of left ventricular function. We evaluated the influence of machine settings on global longitudinal peak systolic strain (GLPSS) values in an everyday patient population (n  = 35). In each patient, the four-chamber view was recorded multiple times with different machine parameters. Ejection fraction ranged between 10% and 76% and correlated well with GLPSS (r = –0.778). GLPSS was not altered systematically by modifications of gain and frame rate.
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Original Contribution Source Type: research