Mindray Resona I9 - Page 174

5-100 Image Optimization
8. Press <B> on the control panel or tap [STQ] on the touch screen to exit the elastography imaging
mode, and return to B mode.
5.14.3.2 STQ Mode Image Optimization
ROI Adjustment
Description Used to adjust the ROI position and scale in STQ imaging.
Operation 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
Description
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.
Operation
Rotate [Elas. Metric] knob to adjust the value of the elasto metric.
The metric includes Young’s modulus E (unit: kPa), and shear modulus G (unit:
kPa).
E Avg
Description
Used to optimize the measurement result via equalizing the elasto metric of the
current frames and the previous frames.
Operation
Rotate [E Avg] knob to adjust the value.
Off represents the E Avg is disabled. The larger the scale is, the more the frames of
the elasto metric are equalized.
Impacts Decrease the image noise.
E bar
Description
This feature supports the elasto curve to be displayed based on different statistical
amounts.
Operations Tap [E bar] on the touch screen to adjust the parameter.
M-STB Index/Sensibility
Description
The STE imaging can easily be affected by respiration, pulse of the main artery, or
transducer movement, which may cause uncertainty and unreliability. The M-STB
Index helps users judge whether the current elasto image is captured in stable state.
Based on the judgment, capturing method, capturing part, and patient cooperation
can be adjusted accordingly.