Spacelabs Healthcare 98000, Operation Manual

Page: 69 / 122

070-2567-03 Rev. A
11-3
11.3.1 RR Intervals
This table shows the number of intervals by type in ms.
RR Peak of R to Peak of R
R-Pace Peak of R to Pace spike
Pace to R Pace spike to Peak of R
Pace to Pace Pace spike to Pace spike
The number of intervals for the entire recording that qualify the above criteria are shown across
the top of the table. Where the total number of qualifying intervals is greater than 10 the square
is shown in Orange.
Click on any row within the table and a histogram is displayed, this show the same data but as
columns and also states how many intervals are in the range.
11.3.2 Pace-spike to Pace-spike Intervals
This table and its histograms present data in the same format as above for the Pace-spike to Pace-
spike intervals. The table uses the following annotation above to denote the intervals
V Ventricular pace-spike
A Atrial pace-spike
U Unknown (classification) pace-spike
Example: VA: The intervals from Ventricular pace-spike to Atrial pace-spike
11.3.3 Trigger to Pace-spike Intervals
This table displays the number of pace-spikes by interval length from the Trigger (R) in ms. As an
Atrial / Ventricular pace-spikes should precede a trigger the interval measurement is shown as a
negative number [- xxx ms].
11.4 Scatter Plots
Scatter-plots show the relationship of a set of values to their (respective) previous values,
separating out low and high variability (and the direction of said variability). Such plots show both
the predominant behavior and unusual areas on different areas of the same graph, making them
easy to identify and select.
Two Scatter Plots are displayed:
RR Interval to Previous RR Interval (ms)
Pacing Interval to Previous Pacing Interval (ms)
Use the radio button to the right of each scatter plot to highlight (separate out) the different
intervals in blue. Then use the left mouse button to select these beats intervals. The now selected
intervals are shown in green with the active interval in yellow. The corresponding interval is
displayed in the top screen.
Use the Prev and Next icons to move through the selected intervals. Use the Print / Confirm /
Artifact buttons to print or delete the intervals in the report.