LABORIE Goby - Manual PTR

LABORIE Goby Owner’s Manual GOBY-UM02 54
NOTE: If more than one cough point exists in a study, LABORIE recommends to select separate segments instead of
the entire test. Basic PTR allows the selection of up to three segments.
4. To modify selected segments, perform one of the following options in the PTR Segment Selection window then
click
Confirm:
a. Click the Auto Segment Detection button to have the software modify the segment.
b. Manually modify the segment by clicking and dragging the pointer across the graph window from the start
to the end of the desired segment.
The system will automatically examine the Pves channel for any cough with an increase in pressure greater than 20cm
H
2
O(Cough threshold). These events are automatically marked and the pressure transmission ratio is calculated. Review
the pressure transmission ration in the Event Summary.
PTR on UPP Segments
The UPP Segment PTR feature is only available when UPP segments exist. Refer to the UPP Summary section on page 64
for information on UPP Segments. Coughs will be calculated only for the UPP segments of the test. To configure UPP
Segments follow the instructions provided below:
1. Click Info > UPP and select Pressure Transmission to launch the Pressure Transmission window (Figure 58).
2. Click UPP Segments and then click OK. The PTR Segment Selection window will appear displaying UPP
segment(s).
3. Select the segment check box.
4. Modify segments by performing one of the following options:
a. Click the Auto Segment Detection button to have the software modify the segment. The “end” of the
segment will be selected.
b. Modify any segments by clicking and dragging the pointer across the graph window. Release the mouse
button. The segment times will be updated.
5. Review selections.
a. To remove changes, deselect any segment and click Cancel to return to the Pressure Transmission window.
b. To keep changes click Confirm. The pressure transmission ratio will be calculated and the user will be
returned to the test. To review data access the event summary.
5.6.4.3 Manual PTR
Manual PTR allows you to customize the cough point selection. It also allows each Pura and Pves peak to be zoomed in
and modified accordingly. This is the most accurate method of calculating PTR. To configure Manual PTR follow the
instructions provided below:
1. Click Info > UPP and select Pressure Transmission to launch the Pressure Transmission window.
2. Select Manual PTR from the Pressure Transmission window and click OK. The Pressure Transmission window
closes.
Click on a peak in the Pves or Pura channel. A window appears with a close-up view of the peak and the value
of its Peak, Base, and Height. The graphic representation will show a white bullet for start and end points on
the graph.
3. To adjust the Position of the Peak, Base, Height, and PTR in the window:
a. Click the white bullet to the left of the cough that indicates the starting point of the peak. Drag the bullet
to the desired starting point. The starting point of the cough is modified. Repeat the same to change the
end point of the cough to the right of the cough. The Peak, Base, and Height automatically recalculate.
b. Click Next to adjust start and end points of the peak for the other channel (Pves or Pura).
c. Review edits and once confirmed click OK. The window closes and the pressure transmission ratio is
displayed as an event in the Evet Summary. To review data, refer to the Event Summary.
4. In the window described in step 0, click OK to manually select another cough point or click Cancel to return to the
test.