Olympus EVIS EUS Snelle referentiehandleiding
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Elastography (ELST) Mode
Adjustment Using the
Trackball
Strain Ratio / Strain Adjustment
* Unit of strain indicator is in percent (%). Example: Distortion value would
be 10% if an object of 10 mm length is inflated or shrunk by 1 mm
Strain Graph Adjustment
QUICK-REFERENCE GUIDE –
ELASTOGRAPHY (ELST) MODE
Using the trackball,
1
adjust the ROI position.
Press the SET button
2
and adjust the ROI size.
If you want to readjust
3
the ROI position, press
the SET button again.
By allocating 2 ROIs (ROI A
and B) to two targeted regions,
strain ratio between the two
regions can be measured.
The color of the Elastography
images can be adjusted
in 5 steps.
The SECTOR buttons adjust
the width on the time axis
of the STRAIN GRAPH to
be referenced in auto CINE
REVIEW and image averaging.
The FRAME AVERAGE button
displays the average elasticity
Visualize the target for stiffness evaluation in the B
1
mode image.
* Note: Make sure it is displayed right below the ultrasound transducer.
Press the ELST key and the mode is switched to the
2
Elastography mode.
Adjustment Using the Touch
Panel
* Recommended size of ROI. Adjust the target while being careful not to
include objects other than the target.
Strain Graph Display
image of the time set with the SECTOR buttons.
* If the FRAME AVERAGE key is pressed again, the length of time is reset.
The AUTO CINE REVIEW button repeatedly displays the CINE
MEMORY images in the time set with the SECTOR buttons.
* If the AUTO CINE REVIEW button is pressed again, the
CINE MEMORY stops.
Select LOCATION or
1
SIZE using the buttons
on the keyboard.
Using the keys, adjust the
2
ROI size and position.
Adjust the size and
3
location of the ROI so the
target is within the ROI.
Select the STRAIN GRAPH
tab and the STRAIN GRAPH
Adjustment menu appears.
By pressing the DISPLAY
key, the Strain Graph can be
displayed or hidden.
By pressing the LOCATION key,
the location of the Strain Graph
can be changed.