ECG

• hiphop2009

  17 Jul 08, 22:32

  hi guys i need some help~

   

  as u all noe basic ECG lead is made up of 3 lead. left arm, right arm and left leg, forming the Einthoven's triangle, plus a right leg for grounding. so my qns is,

   

  can the left leg and right leg replaces the left arm and right arm for ECG measurement? (assuming dat we are measuring a one lead ECG, which is only taking the left arm and right arm for ECG measurement, without right leg as reference)

   

  thanks and hope to hear views on this~

• Darkness_hacker99

  17 Jul 08, 22:41

  Not too sure wor.
  
  My course of study briefly touch on the 12 leads. >.<

• hiphop2009

  17 Jul 08, 22:52

  because it is for my project.

  i also studied 12 leads (though i think not very detailed), ya lo. i got this qns. hmm.....help! arr!

• ifish

  17 Jul 08, 22:54

  i think can.. but the machine will beep like crazy cause missing lead and ur pqrst wave wont be accurate

• hiphop2009

  17 Jul 08, 23:02

  Originally posted by ifish:

  i think can.. but the machine will beep like crazy cause missing lead and ur pqrst wave wont be accurate

  
  i noe. cause my project is doing this and i have tested it on both thumb. and my project's ultimate aim is to get ECG waveform (one lead, so it is noisy) when the two electrode touches the two legs of the person, instead of the thumb.

  i have this qns because i noe right leg is always used as reference, but i wan to be sure if two legs can be used instead of two thumbs.

   

  sigh, i hav been losing sleep because of this~

• ifish

  17 Jul 08, 23:07

  nope..

  wont be accurate

• hiphop2009

  17 Jul 08, 23:16

  Originally posted by ifish:

  nope..

  wont be accurate

  but PQRS waveform can still be detected?

  or simply too inaccurate?

• ifish

  17 Jul 08, 23:24

  Originally posted by hiphop2009:

  but PQRS waveform can still be detected?

  or simply too inaccurate?

  
  i dont think can be detected. why not u just try?

• hiphop2009

  17 Jul 08, 23:32

  Originally posted by ifish:

  
  i dont think can be detected. why not u just try?

  
  i tried but cant get anything. because i not very sure whether is my circuit need to fine tune or is it not even possible to get.

  need to test the theory soon. tmr.

• hiphop2009

  29 Jul 08, 19:55

  tested the theory out and it works.

  thanks for all the help!

  thread close and case close~