Gima CMS8000 Manual Del Uso página 178

• DEF POINT pick this item to access the DEF POINT window, in which the position of ISO and ST point can
be set up.
- ISO Base point.
- ST Measurement point.
Figure 11-9 DEF Point Window
The operator can adjust the position of both ISO and ST measurement points.
The reference point is the position where the peak of R-wave locates (see Figure 11-10).
Figure 11-10 DEF Point
The ST measurement for each beat complex is the vertical difference between the two measurement points.
Note
The ST measurement point should be adjusted if the patient's HR or ECG morphology changes significantly.
• Adjusting ISO, ST
These two points can be adjusted turning the knob.
When adjusting ST measurement point, the system will show the ST Measurement Point Window. The QRS
complex template displays in the window (If the template is not established, a horizontal line will display.
If the channel is not at ON position, a horizontal line will also display). It is adjustable of the highlight bar in
the window. You may select ISO or ST, then switch the knob left or right to move the cursor line. When the
cursor is at the required position, you may select the base point or the measurement point.
Note
• Abnormal QRS complex is not considered in ST segment analysis.
• ST Alarm Message
• The alarm limits for two ST measurements are identical. No setting of alarm limits can be made only for
one channel.
Among physiological alarms, those belonging to the type that the parameter has exceeded the limits may
activate the recorder to automatically output the parameters and related measured waveforms when the
alarms occur on the condition that the alarm record switch in the related menu is On.
R Wave
P
Q
ISO -78 ms
T
S
ST +109 ms
} ST Value
58