Image Optimization 5-97
5.13.3.2 STQ Mode Image Optimization
ROI Adjustment
Used to adjust the ROI position and scale in STQ imaging.
Rotate [Fixed ROI] knob to adjust the ROI fixed size.
The cross ―+‖ shows the center of the ROI, and the depth appears at the right
bottom of the screen.
Elasto Curve and Metric
Display the changes of elasto metric’s average value inside the ROI by elasto
curve. It is convenient to the doctor to choose the stable measurement result.
The square height of the elasto curve (Y-axis represents elasto metric; X-axis
represents the time) represents the average value of the elasto metric for current
frame.
Rotate [Elas Metric] knob to adjust the value of the elasto metric.
The metric includes Young’s modulus E (unit: kPa), and shear wave velocity Cs
(unit: m/s).
Note: the operation description of the STQ in the manual may differ from the real
display of the system because of the configuration variability, please refer to the
system the user purchased.
E Avg
Used to optimize the measurement result via equalizing the elasto metric of the
current frames and the previous frames.
Rotate [E Avg] knob to adjust the value.
The adjusting range is: off, 2-10.
Off represents the E Avg is disabled. The larger the scale is, the more the frames of
the elasto metric are equalized.
Decrease the image noise.
E bar
This feature supports the elasto curve to be displayed based on different statistical
amounts.
Tap [E bar] on the touch screen to adjust the parameter.
Scale
Used to optimize the display effect of the elasto average metric inside ROI via
changing the Y-axis size.
Rotate [Scale] knob to adjust the value.
The adjusting range is: 0-9 in increment of 1.
If elasto metric average value inside ROI of a certain frame image exceeds the
maximum scale on the elasto curve, elasto metric will display in the maximum
scale value.
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