6 - 6 Operator’s Manual
6 Image Acquisition
Acoustic Power (A.Power)
Refers to the power of ultrasonic wave transmitted by the probe, the real-time value of which is
displayed in the upper left corner of the screen.
You should perform exams according to actual situation and follow the ALARA Principle.
Scan range and FOV position
More information can be obtained without moving the probe or changing the sampling position.
• The FOV position/range is available only for the convex and phased probes.
• When the scan range is adjusted to the widest, the FOV position cannot be changed.
• You can get a much larger field of view when selecting a larger FOV, but the frame rate will
decrease.
B Steer
To steer the beam the probe transmits.
Steer is available only for linear probes.
Line Density
The function determines the quality and information of the image.
The higher the line density is, the higher the resolution becomes.
Dynamic Range (Dyn Ra.)
Adjusts contrast resolution of an image, compresses or expands gray display range.
The real-time dynamic range value is displayed on the image parameter area.
The more the dynamic range, the more specified the information, and the lower the contrast with
more noise.
Smooth
This feature is used to reject the noise and smooth the image.
The bigger the value is, the higher the smooth becomes.
iClear
The function is used to enhance the image profile so as to distinguish the image boundary for
optimization.
“Off” represents iClear is disabled, and the bigger the value is the stronger the effect becomes.
Persistence
Used to superimpose and average adjacent B images, so as to optimize the image and remove
noises.
Persistence can remove image noise to make image clearer.
Persistence increase may lead to signal missing.
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