ZS3 Instructions for Use
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Measurement
Tools
Function
PSV
Measures the Peak Systolic Velocity of a waveform; the highest velocity of red blood
cells crossing the sample volume.
EDV
Measures the End Diastolic Velocity of a waveform; the blood velocity at the end of
the cardiac cycle.
PS/ED
Velocity and PG between two peaks on the Doppler spectrum are measured to
calculate the PS/ED (peak systolic/end diastolic).
Diast1/Diast2,
PSV1/PSV2
Velocity between two points on the Doppler spectrum are measured to calculate
Ratio
VTI
Measures Velocity Time Integral of a Doppler Waveform
Peak Gradient
Measures the peak pressure gradient of the traced Doppler waveform.
Mean Gradient
Measures the mean pressure gradient of the traced Doppler waveform.
½ time
Measure pressure half time of a Doppler waveform.
Slope
Measures the distance and time between two points and calculates the slope.
Volume Flow
Measures the blood flow through a vascular cross section per unit time.
MV Slope
Under the cardiac exam mode, you can select the MV Slope to measure the MV E
Vel, MV E Grad, MV Area (PHT), MV DecT, and MV PHT items.
Auto-Trace
There are multiple ways of invoking Auto-Trace. Any of the following may be used:
•
A function key can be configured for Auto-Trace in
Setup / Keys.
•
Double-clicking on the
Caliper
button while Doppler is active.
•
Selecting Auto-Trace from the
Softkey OLED
controls (while Auto-Trace is active, a
Volume Flow OLED will also be available for easy access).
Once Auto-Trace is active the onscreen results box will automatically update data based on the
spectral display. Users may select which measurements are included in the results box by
exam type using
Setup / System / Application / Auto-Trace
The interval size, and envelope type can be configured in
Setup / System / Application /
Auto-
Trace
or by adjusting the OLEDs assigned to the functions when Auto-Trace is active.
Summary of Contents for Zonare ZS3
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