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ecg:einthoven
The Einthoven leads I,II,III

The Einthoven leads measure the ECG in a truly bipolar fashion between two limbs:

  • I = left arm - right arm
  • II = left leg - right arm
  • III = left leg - left arm

In modern ECG machines Einthoven III is usually not measured but calculated from I and II: III = II – I.

Einthoven I,II,III measurement data

next: How to measure the augmented leads aVF, aVR and AVL


ecg/einthoven.txt · Last modified: 2017/02/19 22:15 by berndporr