Schiller AT-1 Mode D'emploi page 60

Measurements Measurements Measurements Measurements Measurements
The SCHILLER measurement program provides a table with lead specific measurement results. In 12 columns i.e.
one for each lead, the amplitude values of P , Q, R ,S, T and R', S', T' waves, the J point and the ST integral are listed
in millivolts. The amplitude measurements relate to a reference value that corresponds to the signal value immediately
before the beginning of the QRS. For P measurement the zero value at Pon is determined as a mean value in an
interval from Pon -20ms to Pon inclusive. The duration of the Q, R, S, R' and S' waves are given in milliseconds
(rounded to 2ms). The amplitudes are given in mV (rounded to 0.01mV)
Parameter Parameter Parameter Parameter Parameter
P
Q
Qd
R
Rd
S
Sd
R'
R'd
S'
S'd
J
ST
T
T'
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Description Description Description Description Description
amplitude of P wave
amplitude of Q wave
duration of Q wave
amplitude of R wave
duration of R wave
amplitude of S wave
duration of S wave
amplitude of R' wave
duration of R' wave
amplitude of S' wave
duration of S' wave
amplitude of J point
ST integral : averaged amplitude of the ST segment
(from the J point to half the distance between the
J-point and max. T wave)
amplitude of the T wave
amplitude of the T' wave (in case of
biphasic T wave)
Measurement unit Measurement unit Measurement unit Measurement unit Measurement unit
mV
mV
ms
mV
ms
mV
ms
mV
ms
mV
ms
mV
mV
mV
mV