Philips IntelliVue MX40 - Page 94

Reconstructed Leads
6-18 ECG and Arrhythmia Monitoring
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
I
I
I
LA-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
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