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Table 1 Reference mean values of left ventricle strain measures on Philips machine by vendor

From: Assessment of left ventricular systolic function after VSD transcatheter device closure using speckle tracking echocardiography

Age distribution

Mean GCS (CI)

Mean GRS (CI)

0–1

NA

 

2–9

− 22.4% (− 23.2, − 21.6)

NA

10–13

− 19.0% (− 19.6, − 18.4)

 

14–21

− 18.0% (− 20.2, − 15.9)

NA

Overall

− 18.4% (− 19.7, − 17.1)

NA

  1. Data presented as mean; NA not applicable (no studies in this age range), GCS global circumferential strain, GRS global radial strain