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Table 2 Automated classification algorithm

From: Signal-averaged P wave analysis for delineation of interatrial conduction – Further validation of the method

 

Type 1

Type 2

Type 3

Lead X

{1 ; * ; 0}

{1 ; * ; 0}

{1 ; * ; 0}

 

{1 ; 0 ; *}

{1 ; 0 ; *}

{1 ; 0 ; *}

 

{0 ; * ; 1}

{0 ; * ; 1}

{0 ; * ; 1}

Lead Y

{1 ; * ; 0}

{1 ; * ; 0}

 
 

{1 ; 0 ; *}

{1 ; 0 ; *}

{1 ; 1 ; -1}

 

{0 ; * ; 1}

{0 ; * ; 1}

 

Lead Z

{-1 ; * ; 0}

  
 

{-1 ; 0 ; *}

{-1 ; 1 ; 1}

{-1 ; 1 ; 1}

 

{0 ; * ; -1}

  
  1. Position one refers to the first peak detected and position three to the second peak (1 = maximum; -1 = minimum; 0 = neither). Position two refers to zero-crossings in the mid third of the P wave (1 = present; 0 = absent). A * indicates that any value is acceptable.