P3V Veterinary Digital Ultrasonic Diagnostic Imaging System User Manual
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To measure distance stenosis:
1.
Press
Measure
to activate measurement function.
2.
Roll the trackball to highlight
% Stenosis
, and select
Distance
, and
then press
Set
to activate a measurement cursor on the screen.
3.
Measure the first distance with the distance measurement method.
4.
Measure the second distance, move the cursor and press
Set
to anchor
the start point, and the mark “+” appears. Move the cursor with
trackball, Measurement Results displays the real time measurement
value and calculation result.
5.
During measurement, you can press
Change
to change the start point
and the end point; if you press
Change
again, the system interchanges
the numerator and denominator.
6.
Roll the trackball and press
Set
to complete the measurement, and the
calculation result will be displayed in the measurement result window.
7.
Roll the trackball and press
Set
to begin a new stenosis measurement.
You can measure a maximum of four groups of data. The outcome
will be displayed in the measurement result window.
8.
Press
Measure
to finish and exit.
Dist11
Dist12
DSR1
Figure 6-10 Distance Stenosis Measurement and the Results
Area stenosis
To determine the area stenosis, take two area measurements: A and B. The
system calculates the stenosis:
(
A-B)/A * 100%.
To measure area stenosis:
