Sonoscape S22 User Manual

6 Acquiring Images
Basic User Manual 73
■ Wall Filter
Wall lter is used to lter the low frequency noise from tissues, such as the vascular wall.
To adjust the wall lter:
●
Tap the left part of
WF
on the touch screen to decrease the value.
●
Tap the right part of
WF
on the touch screen to increase the value.
■ Pulse Repetition Frequency
Pulse repetition frequency is used to adjust the velocity scale.
To adjust the pulse repetition frequency:
●
Tap the left part of
PRF
on the touch screen to decrease the value.
●
Tap the right part of
PRF
on the touch screen to increase the value.
■ Line Density
Line density refers to the amount of ultrasound beam that makes up the image. Increasing the value of line density
improves the resolution and decreases frame rate. Therefore, you have to balance the frame rate and the image
quality when adjusting the line density.
A lower line density is useful in fetal heart beat, adult cardiac applications and in clinical radiology applications. A
higher line density is useful in obtaining a very high resolution, such as for the thyroid or testicles.
To adjust the line density:
●
Tap the left part of
Line Density
on the touch screen to decrease the value.
●
Tap the right part of
Line Density
on the touch screen to increase the value.
■ Baseline
Baseline represents the position of zero velocity or frequency. The velocity range in one direction can be increased
or decreased by adjusting the baseline.
Baseline is used to eliminate the alias in the color ow imaging, and display higher velocities without reversal of
colors.
To adjust the baseline:
●
Tap the left part of
Baselines
to move the baseline towards the positive direction.
●
Tap the right part of
Baseline
to move the baseline towards the negative direction.
■ Color Map
Color map is used to select the method for the color-coding of blood ows.
To adjust the color map:
Tap the left or right part of
C Map
on the touch screen to make the setting.
NOTE:
When
C Map/DPDI
is set to
4
or above in the PDI mode, the system automatically enters the DPDI mode
and
DPDI
appears. At this time, you can view the ow direction and velocity.
■ Persistence
Persistence is used to average consecutive frames to provide a smoother appearance with less noise. Use lower
persistence values for fast-moving organs or tissues and higher persistence values for a smoother appearance.
To adjust the persistence:
●
Tap the left part of
Persist
on the touch screen to decrease the value.
●
Tap the right part of
Persist
on the touch screen to increase the value.

Sonoscape S22 Specifications

General

Brand	Sonoscape
Model	S22
Category	Medical Equipment
Language	English