From: Global longitudinal strain manually measured from mid-myocardial lengths is a reliable alternative to speckle tracking global longitudinal strain
Variable
Intraobserver
Interobserver
ICC
95% CI
P-value
ST-GLS
0.980
0.955–0.991
< 0.001
0.967
0.916–0.986
MM-GLS
0.975
0.943–0.989
0.966
0.924–0.985