User guide

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).