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Table 2 Intra- and inter-observer variabilities of the echocardiographic parameters

From: The role of renin angiotensin system antagonists in the prevention of doxorubicin and trastuzumab induced cardiotoxicity

Echocardiographic parameters Mean difference ± SD
Intra-observer variability  
LVID (mm) 0.05 ± 0.02
LVFS (%) 0.6 ± 0.2
Inter-observer variability  
LVID (mm) 0.08 ± 0.04
LVFS (%) 1.3 ± 0.2
  1. LVID, Left ventricular end diastolic internal diameter; LVFS, Left ventricular fractional shortening.