Image Optimization 5-17
Steer
Description
The feature is used to adjust the ROI of color flow with different angles with
immobility of the linear probe.
Operation Adjust through the [Steer] item in the soft menu or menu, or rotate the
multifunctional knob to adjust.
Values of steering angles vary by probes.
Effects This function is used to adjust the scan angle of linear probes, so as to
change the angle between the transmitting beam and flow direction.
Impacts Steer is available only for linear probes.
Line Density
Description
The function determines the quality and information of the image.
Operation Adjust through the [Line Density] item in the soft menu or menu.
There are 2 levels of line density provided: UH, H, M, L.
Effects The higher the line density, the higher the resolution.
Impacts The higher the line density, the smaller the frame rate.
Packet Size
Description
This function is an indication of the ability to detect flow, which is used to
adjust the accuracy of color flow.
Operation Adjust through the [Packet Size] item in the soft menu or menu.
There are 4 levels of packet size provided, 0 represents no packet size
control and the bigger the value the higher the sensitivity.
Effects The higher the packet size, the more sensitive indication for low-velocity
flow.
Impacts Increasing the packet size will lead to frame rate decrease.
Flow State
Description
This function is used for a fast image optimization by providing an
adjustment of 2 parameters, including scales and filters.
Operation Adjust through the [Flow State] item in the soft menu or menu.
There are 3 levels provided to adjust: L, M, H.
Persistence
Description
This function is to adjust the temporal smooth in Color mode to optimize
the image.
Operation Adjust through the [Persistence] item in the menu or the soft menu.
The system provides 5 levels of persistence adjustment, 0 represents no
persistence and the bigger the value the stronger the effect.