Olympus EVIS EUS Quick Reference Manual

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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,

adjust the ROI position.

Press the SET button

and adjust the ROI size.

If you want to readjust

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

mode image.

* Note: Make sure it is displayed right below the ultrasound transducer.

Press the ELST key and the mode is switched to the

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

SIZE using the buttons

on the keyboard.

Using the keys, adjust the

ROI size and position.

Adjust the size and

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.