Two-dimensional global and segmental longitudinal strain

Speckle-tracking echocardiography (STE) is an emerging quantitative ultrasound technique that allows an accurate evaluation of global and segmental myocardial function. However, there is a lack of standardization of the acquired data among different manufacturers. Patrianakos and colleagues compared peak global longitudinal myocardial strain (PGLS) and peak segmental longitudinal myocardial strain (PSLS) values obtained with two different STE devices. Both sets of equipment were found to give comparable results for PGLS, while PSLS showed a strong relationship between the values of apical myocardial segments, but a weak relationship for the basal segments. Therefore, although the values of PGLS appear to be interchangeable, the evaluation of segmental systolic strain, especially in the basal segments, must be viewed with caution.

Read the full article at Patrianakos et al. (2015) Echo Research and Practice 1 29–39

DOI:10.1530/ERP-14-0070