GE LOGIQ e R4 Series Basic Service Manual page 111

GE
Direction 5370626-100, Revision 18
Table 4-10
Step
16
17
18
19
20
21
22
23
Doppler Mode Touch Panel Controls
Task
Move Baseline
Change PRF (Pulse Repetition
Frequencies) - (Wall Filter)
Change Scale - (Low Vel Reject)
Trace Sensitivity
Time Resolution
Spectral Average
Power output
SV Length
Wall Filter
Low Vel Reject
Chapter 4 Functional Checks
LOGIQ e/LOGIQ e Vet/LOGIQ i/Vivid e Basic Service Manual
Expected Result(s)
Adjusts the baseline to accommodate faster
or slower blood flows to eliminate aliasing.
Velocity scale determines pulse repetition
frequency. If the sample volume gate range
exceeds single gate PRF capability, the
system automatically switches to high PRF
mode. Multiple gates appear, and HPRF is
indicated on the display.
Velocity scale determines pulse repetition
frequency. If the sample volume gate range
exceeds single gate PRF capability, the
system automatically switches to high PRF
mode. Multiple gates appear, and HPRF is
indicated on the display.
Adjusts the sensitivity to get more accurate
envelope trace.
Adjusts the resolution in frequency domain.
Optimizes the smoothness of the spectrum.
Different levels can be selected.
Optimizes image quality and allows user to
reduce beam intensity. 10% increments
between 0-100%.
Sizes the sample volume gate.
Wall Filter insulates the Doppler signal from
excessive noise caused from vessel
movement.
Wall Filter insulates the Doppler signal from
excessive noise caused from vessel
movement.
comments
For LOGIQ e, LOGIQ e
Vet and LOGIQ i
For Vivid e
For LOGIQ e, LOGIQ e
Vet and LOGIQ i
For Vivid e
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