6.2.9
Grayscale curve
Due to the difference bet ween the anatomical structures, different organs produc e different
grayscale distribution on the ultrasound image.
GSC
compensates grayscale mapping for
some organs and makes better discrimination for these organs. Brightness of each pixel is
determined by the amplitude of the corresponding echo. Grayscale curve (
GS C
) adjusts the
images by changing how the amplitude is converted to brightness.
The GSC is adjustable in the real time mode as well as the frozen mode.
Instructions:
1.
Open the menu, and use the trackball to select
GSC
.
2. Rotate
to decrease/increase the value of Grayscale Curve.
NOTE
Grayscale Curve
is displayed on the top left screen as D/G (G for grayscale curve).
6.2.10
Persistence
Persistence is used to average consecutive fram es to provide a smoother appearance with
less noise. Use lower persistence values for fast -m oving organs or tissues and higher
persistence values for smoother appearance.
Instructions:
1.
Open the menu, and use the trackball to select
Persist
.
2.
Rotate to decrease/increase the value of Persistence value.
NOTE:
Persistence
value is displayed on the top left screen as
I/P
(P for persistence).
6.2.11
μScan Function
μ
Scan is used to improve the image quality.
Instructions:
1.
Open the menu, and use the trackball to select
μScan
.
2. Rotate
to change the
μ
Scan value.
NOTE:
The μScan function is available when a valid μScan dongle has been installed to the system.