Mindray DC-80A, Руководство оператора

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Image Optimization 5-89
RLB Map
Description Used to help the user judge the region where it is suitable for elasto measurements
based on the distinctive colors in elasto image in quality map.
The RLB Index shows the signal reliability of the STE inside the ROI, and it helps the
user judge the effectiveness of the current elasto measurement.
Operation
Tap [RLB Map] to enable the function (the soft key is highlighted). The quality map
appears on the left side of the image.
With both real-time ultrasound image and elasto image displaying, the real-time
ultrasound image is replaced with the quality image.
With only elasto image displaying, the elasto image is replaced with the quality image.
The higher the RLB Index is, the more reliability the signal becomes; vice versa.
There are three colors showing the RLB Index: Red (low reliability), Yellow (medium
reliability) and White (high reliability).
Impacts
The color in High area is suitable for the imaging of shear wave elastography.
The color in Low area is not suitable for the imaging of shear wave elastography (liquid, gas,
bone, etc). It can be used as a tool to detect the tissue or the lesion.
RLB View
Description
This feature supports the less qualified region or the region that fails to receive shear
waves of the gas or liquid to be displayed in hollow.
Operation Tap [RLB View] on the touch screen to enable the function and the button will be
highlighted.
After the RLB View function is enabled, the less qualified region is displayed in hollow.
The hollow region can be seen in B images. The hollow region corresponds to the
purple region in the reliability image.
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.
Operation Tap [M-STB Index] on the touch screen to enable the function and the button will be
highlighted. Then the M-STB Index is displayed at the upper side of the image.
Grading definition of the M-STB Index: 1 star indicates that the motion interference is
extremely strong, and it is not recommended to use the elasto image; 2 stars indicates
that the motion interference is relatively strong, and it is not recommended to use the
elasto image; 3 stars indicates that the motion interference is general, and it is not
recommended to use the elasto image; 4 stars indicates that the motion interference is
not strong, and the image can be used; 5 stars indicates that the motion interference is
few or slight, and it is recommended to use the elasto image.
Tap [M-STB Sensi.] on the touch screen to set the grading threshold of the M-STB
Index.
The stronger the sensibility of the motion stability is, the higher the judgment accuracy
of the motion interference becomes.
Effects
Users can determine the interference degree of the currently-captured elasto image
according to the M-STB Index.