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Table 4 Comparison of visual assessment, AutoEF, Manual Simpson and myocardial perfusion imaging (MPI), expert readers.

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

   Visual assessment of LVEF(%)
  LVEF% ≥ 55 45–54 30–44 < 30 Total
AutoEF       
  ≥ 55 90 42 10 1 143
  45–54 31 42 25 1 99
  30–44 1 9 22 11 43
  < 30 0 0 4 6 10
Manual Simpson       
  ≥ 55 81 41 7 1 130
  45–54 31 37 18 2 88
  30–44 10 15 30 9 64
  < 30 0 0 6 7 13
MPI       
  ≥ 55 99 45 6 0 150
  45–54 21 38 24 2 85
  30–44 2 10 19 9 40
  < 30 0 0 12 8 20
Row Total 122 93 61 19 295
  1. Note that there are five readings per patient for each method. The numbers of the single reader in MPI has been multiplied by 5.