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Table 1 Group results for the transthoracic echocardiographic and MPI variables

From: Computer-assisted determination of left ventricular endocardial borders reduces variability in the echocardiographic assessment of ejection fraction

  Corrected AutoEF
n = 59
(5 readers)
Uncorrected AutoEF
n = 59
(1 reader)
Manual Simpson
n = 59
(5 readers)
MPI
n = 59
(1 reader)
LVEF (%) 53 ± 10 54 ± 10 51 ± 11 52 ± 12
EDV/BSA (mL/cm2) 53 ± 18 51 ± 16 56 ± 20 67 ± 26
ESV/BSA (mL/cm2) 26 ± 14 24 ± 13 28 ± 15 35 ± 23
Time for analysis (s) 174 ± 43 79 ± 5 190 ± 64  
Range (s) 96–417 68–90 100–615  
  1. Mean ± SD
  2. BSA = body surface area, EDV = End-diastolic volume, ESV = End-systolic volume, LVEF = Left ventricular ejection fraction, MPI = myocardial perfusion imaging.