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desatur

PURPOSE ^

DESATUR calculates desaturation of the Oxygen in the blood

SYNOPSIS ^

function [arg0,s0,ODI,x,HDR]=desatur(arg1,arg2,arg3)

DESCRIPTION ^

 DESATUR calculates desaturation of the Oxygen in the blood
 [V,s,ODI,x]=desatur(FN [,CH]) 
 [V,s,ODI,x]=desatur(s,Fs)

 FN    filename 
 CH    channel number, default 16.
 s     recorded signal,
 Fs    sampling rate

 Automatic evaluation of oxygen saturation can deliver:
 V(1) - mean oxygen saturation
 V(2) - time spent with oxygen saturation below 90% in minutes
 V(3) - time spent with oxygen saturation below 80% in minutes
 V(4) - time spent with oxygen saturation below 70% in minutes
 V(5) - number of oxygen desaturations
 V(6) - mean value of oxygen desaturation in percent
 V(7) - mean duration of oxygen desaturation in seconds
 V(8) - median oxygen saturation
 V(9) - median value of oxygen desaturation in percent
 V(10)- median duration of oxygen desaturation in second
 
 s   original Sa02 signal
 ODI Oxygen de-saturation index (number of detected de-saturations per hour)
 x   detector output

  see also: QRSDETECT

  $Id: desatur.m,v 1.2 2007/07/31 13:47:37 schloegl Exp $
  Copyright (C) 2000,2007 by Alois Schloegl
  This is part of the BIOSIG-toolbox http://biosig.sf.net/

CROSS-REFERENCE INFORMATION ^

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