B-K Medical Pro Focus 2202, User Manual

Page: 120 / 356

120 Chapter 7
Adjusting the Scan Area
Depth
Full B-mode
image
With a full B-mode image, you adjust the depth to cut out parts below the part you
are interested in. The scanned image always includes the transducer surface, so this
key changes the magnification of the image, stretching or compressing it.
NOTE
: To adjust the depth of the image without changing the magnification, see
“Panning” on page 124. When the image is panned, the top of the image does
not necessarily still correspond to the transducer surface.
Zoomed
image
Adjusting the depth of a zoomed image (see “Zoom” on page 123), changes the
magnification even though the transducer surface is not necessarily visible at the top
of the image.
There are two ways to adjust image depth.
To adjust image depth:
• Make sure the cursor is located within the image and press
[
+/-
]
.
or
•
Press the
[
Depth
l
]
key to increase or decrease depth.
NOTE : Pressing the + end of the key up decreases the depth – increases the
magnification.
When the depth has been adjusted, Zoom/Pan is visible under Image on the right
side of the screen, together with a small indicator light.
To return to original depth:
• Click Zoom/Pan.
Width
You can adjust the width of the scan area in a B-mode image. A narrow width allows
for greater frame rate without a loss of image resolution.
To adjust the width of the scan area:
• Press the
[
Width
G
]
key to increase or decrease width.
Gain
To adjust the gain (brightness) of the scanned image, use a combination of the
[
B Gain/Cine
]
dial and the
[
TGC
]
(Time Gain Compensation) sliders on the
control panel.