P3V Veterinary Digital Ultrasonic Diagnostic Imaging System User Manual
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Reference Section
6.6.2 Generic Measurements in M Mode.
Velocity
To measure velocity of a point on the Doppler wave:
1.
Press
Measure
to activate a measurement cursor “+”.
2.
Roll the trackball to highlight
Velocity
and press
Set
and a “+” is displayed.
3.
Roll the trackball and press
Set
to anchor the point, measuring velocity.
4.
Roll the trackball and press
Set
to begin a new velocity measurement. You
can measure a maximum of four groups of data. The outcome will be
displayed in the measurement result window, as shown below.
5.
Press
Measure
to finish and exit.
Heart Rate
Refer to the heart rate measurement in 6.6.2 Generic Measurement in M mode.
Acceleration
To measure velocities of two points on the Doppler wave, and calculate the
acceleration:
Acceleration = (Vel1
－
Vel2) / Interval
1.
Press
Measure
to activate a measurement cursor “+”.
2.
Roll the trackball to highlight
Acceleration
and press
Set
and a “+” is
displayed.
3.
Roll the trackball and press
Set
to anchor the first point, measuring
Vel1
.
4.
Roll the trackball and press
Set
to anchor the second point, measuring
Vel2
and
Interval
, and calculating
Acceleration
.
5.
Roll the trackball and press
Set
to begin a new acceleration measurement.
You can measure a maximum of four groups of data. The outcome will be
displayed in the measurement result window, as shown below.
6.
Press
Measure
to finish and exit.
RI
(Resistance
Index)
To measure velocities of two peak points on the Doppler wave, and calculate RI
and S/D:
RI = (Vel1
－
Vel2)/Vel1
1.
Press
Measure
to activate a measurement cursor “+”.
2.
Roll the trackball to highlight
RI
and press
Set
and a “+” is displayed.
3.
Roll the trackball and press
Set
to anchor the first peak point, measuring
Vel1
.
4.
Roll the trackball and press
Set
to anchor the second peak point, measuring
