EF
  Boole Simpson Trapezoidal True value
GP1 57.1420±6.22 56.4056±5.59 56.5798±5.14 59.6200±3.80
GP2 67.15±6.44 67.326±6.50 67.422±6.51 59.6200±3.80
GP3 65.54±6.56 65.77±6.43 65.74±6.38 59.6200±3.80
GP4 65.52±6.54 65.76±6.42 44.97±6.41 59.6200±3.80
GP5 57.47±6.34 57.41±6.26 57.50±6.38 59.6200±3.80
Table 1: The mean of EF (%) estimated for 50 subjects with normal ECG signal, using Trapezoidal, Simpson, and Boole integration method for five groups of ECG leads
(GP 1: all leads, GP2:V1-V4, GP3:II,III,aVF, GP4:I,aVL,V5-V6, GP5:I,aVF,V2).