Philips IntelliVue TRx - Page 103

Draft - 1 Aug 08
Measuring ECG
ECG Monitoring
6-9
Reconstructed
Leads
Reconstruction of leads from the sourced wave is defined by the calculations in
the following table. EASI reconstructed leads are a linear combination of all
three raw EASI leads.
ECG Lead
Clinical Calculations
in terms of electrodes
3-Wire
5-Wire
Standard
6-Wire
II ILA-RA
II
(default)
II
(default)
II
(default)
LL-RA
III III
(default)
III
(default)
LL-LA
- MCL V-LA, where V=C
- aVR aVR RA-(LA+LL)/2
- aVL aVL LA-(RA+LL)/2
- aVF aVF LL-(LA+RA)/2
- V
(default)
V-(RA+LA+LL)/3, where V=C
Va Va-(RA+LA+LL)/3, where
Va=V2 (default) position
Vb Vb-(RA+LA+LL)/3, where Vb
=V5 (default) position