General Information; Reported Parameters In Global Mode - Saadat DENA 650 User Manual

Chapter 6: ECG analysis and measurement

General information

In order to automatically analyze the ECG signal, the analysis and interpretation software of the University
of Glasgow (The Glasgow Program) has been added to DENA 650. This software helps in more accurate
diagnosis of the disease in two parts: Measurement and Interpretation. The Measurement section measures
and reports the important parameters of the ECG signal and the Interpretation section uses the results of the
Measurement section to diagnose the disease.
For best results, the physician must enter the patient's gender and age. It should be noted that the Glasgow
software analyzes and interprets 10 seconds of the ECG signal.

Reported parameters in Global mode

In Global mode, reported signal specifications, are not dependent on individual ECG leads and are generally
calculated for the ECG signal.
ECG parameters
P Duration [ms]
PR Interval [ms]
QRS Duration [ms]
RR Interval [ms]
QT Interval [ms]
QTc Interval [ms]
T Duration [ms]
ST Duration [ms]
P/QRS/T/ST Axis
[degree]
Table 6-1 Reported parameters in Global
Time interval from the beginning to the end of the P wave
Time interval from the beginning of the P wave to the beginning of the Q wave
Time interval from the beginning of the Q wave to the end of the S wave
Average time interval between two consecutive R peaks
Time interval from the beginning of the Q wave to the end of the T wave
Normalized QT based on RR Intervals
Time interval from the beginning to the end of the T wave
Time interval from the beginning to the end of the ST segment
Figure 6-1 Signal parameters in Global
Description
Heart Axis
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