EDAN DUS 60 User Manual page 38

DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual
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.
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:
To measure area stenosis:
1. Press Measure to activate measurement function.
2. Roll the trackball to highlight % Stenosis, and select Area, and then
press Set to activate a measurement cursor on the screen.
3. Measure the first area with the ellipse method.
4. Measure the second area, 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
Dist11
Dist12
DSR1
A-B)/A * 100%.
(
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Operation DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual
Angle
and the end point.
6. Roll the trackball and press Set to complete the measurement. You can
measure a maximum of one group of data. The outcome will be
displayed in the measurement result window.
7. Press Measure to finish and exit.
Figure 6-11 Area Stenosis Measurement and the Results
To determine an angle, draw two lines: A and B. The system calculates the
angle.
To measure angle:
1. Press Measure to activate measurement function.
2. Roll the trackball to highlight Angle, and then press Set to activate a
measurement cursor on the screen.
3. Draw the first line A with the distance measurement method.
4. Draw the second line B, 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
line A and line B.
6. Roll the trackball and press Set to complete this measurement.
7. Roll the trackball and press Set again to begin a new angle
measurement. You can measure a maximum of four groups of data.
The angles formed by the two lines are displayed in measurement
result window, in units of degrees. The outcome will be displayed in
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Operation
A1
A2
ASR