EDAN iM50, Руководство пользователя

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Patient Monitor User Manual Monitoring ECG
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Because the duration of the Q-, R- or S-wave of 12 leads is respectively detected by the ECG
algorithm, isoelectric parts (I-waves) after global QRS-onset or before global QRS-offset
(K-wave) are excluded in the measurement duration of the respective adjacent waveform.
Q R S D u r a t i o n = R d + S d + R ’ d
I
K
R D u r a t i o n
Q D u r a t i o n
R D u r a t i o n S D u r a t i o n
R
R ’
S
V 1
V 3
V 5
9.8 ST Segment Monitoring
The monitor performs ST segment analysis on normal and atrially paced beats and calculates ST
segment elevations and depressions. This information can be displayed in the form of ST
numerics and ST templates on the monitor.
ST segment monitoring function is shut off by default. You can switch it to On when necessary.
When using the ST analysis function, the ST analysis results will be displayed on the right of the
main screen.
NOTE:
1 ST-segment analysis is intended for use with adult patients only and is not clinically
validated for use with neonatal and pediatric patients. For this reason, the
recommended and default setting for ST analysis in neonatal and pediatric modes is
Off.
2 In ST analysis, the obtained ST value and ST template are all unaffected by the
selected filter mode. ST algorithm itself uses a dedicated linear filter to ensure the
signal is not distorted, and to better ensure the consistent and accurate
measurement value and ST template can be obtained in different filter modes. If the
doctor wants to observe the waveform to evaluate ST segment result, it is
recommended to use the ST template for observation, as it is not affected by the filter
mode. If the real-time waveform displayed on the interface is used to evaluate ST
segment result, it is recommended to select
Diagnosis
mode.
3 Reliable ST monitoring may be influenced in following situations:
You are unable to get a lead with low noise.
If there is arrhythmia such as atrial fibrillation/flutter, the ECG baseline may be
irregular.