Edge Ultrasound System Betriebsanweisung PDF herunterladen (Seite 37)

Chapter 3: Imaging 25

Imaging

Chapter 3: Imaging

Imaging modes

The system has a high-performance display and

advanced image-optimization technology that

simplifies user controls. Imaging modes available

depend on the transducer and exam type. See

“Imaging modes and exams available by

transducer” on page 33.

2D imaging

2D is the system's default imaging mode. The

system displays echoes in two dimensions by

assigning a brightness level based on the echo

signal amplitude. To achieve the best possible

image quality, properly adjust the display

brightness, gain, depth settings, viewing angle, and

exam type. Also, select an optimization setting that

best matches your needs.

To display the 2D image

1 Do any of the following:

• Turn on the system.

•Press the 2

D key.

2 Adjust controls as desired. See “2D controls.”

2D controls

In 2D imaging, you can select the following

on-screen controls.

Optimize Settings are as follows:

• Res provides the best possible

resolution.

• Gen provides a balance between

resolution and penetration.

• Pen provides the best possible

penetration.

Some of the parameters optimized

to provide the best image include

focal zones, aperture size,

frequency (center and bandwidth),

and waveform. They cannot be

adjusted by the user.

Dynamic

Range

Adjusts the grayscale range: -3, -2,

-1, 0, +1, +2, +3.

The positive range increases the

number of grays displayed, and the

negative range decreases the

number of grays displayed.

Dual Displays side-by-side 2D images.

Select Dual, and then press the

UPDATE key to display the second

screen and to toggle between the

screens. With both images frozen,

press the

UPDATE key to toggle

between the images.

To return to full-screen 2D imaging,

select Dual or press the 2

D key.

LVO On,

LVO Off

LVO On turns on Left Ventricular

Opacification. LVO Off turns off this

control.

Use LVO for cardiac exams in 2D

imaging mode. LVO lowers the

mechanical index (MI) of the

system.

This control depends on transducer

and exam type.

Orientation Select from four image orientations:

U/R (Up/Right), U/L (Up/Left),

D/L (Down/Left), D/R

(Down/Right).

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