Biolight Meditech E30 - Measurements of One Beat; Isoelectric Segments

E30 Digital Electrocardiograph User’s Manual
20
E.2 Measurements of One Beat
Parameter Description Measurement unit
Pa Amplitude of the P wave mV
P’a
Amplitude of the P’ wave
(in case of biphasic P
wave)
mV
Qa Amplitude of the Q wave mV
Ra Amplitude of the R wave mV
Sa Amplitude of the S wave mV
R’a Amplitude of the R’ wave mV
S’a Amplitude of the S’ wave mV
Ta Amplitude of the T wave mV
T’a
Amplitude of the T’ wave
(in case of biphasic T
wave)
mV
Pd Duration of P wave ms
P’d Duration of P’wave ms
PR PR interval ms
QRS Duration of QRS ms
QT QT interval ms
E.3 Isoelectric Segments
Between the global onset and offset of the QRS-complex, signal parts with a duration of more
than 6 ms and amplitudes not exceeding 20μV for at least three samples should be defined as
isoelectric segments – I-wave before the global QRS-ONSET and K-wave after the global
QRS-OFFSET.
Isoelectric parts (I-wave) after global QRS-ONSET or before global QRS-OFFSET (K-wave)
are excluded in the duration measurement of the respective adjacent waveform.