Mindray DC-80 User Manual

5-20 Image Optimization
5.5 Power Mode Image Optimization
Power mode provides a non-directional display of blood flow in the form of intensity as opposed to
flow velocity.
DirPower (Directional Power mode) provides additional information of flow direction towards or
away from the probe.
5.5.1 Basic Procedures for Power Mode Imaging
1. Select a high-quality image during B mode or B + Color scanning, and adjust to place the area
of interest in the center of the image.
2. Press <Power> to enter B + Power mode. Roll the trackball to change position of the Region
of Interest (ROI) and press the <Set> key to set. Roll the trackball to change the size and
position of ROI.
3. Adjust the image parameters during B + Power mode scanning to obtain optimized image.
4. Perform other operations (e.g. measurement and calculation) if necessary.
5.5.2 Power Mode Image Parameters
 In Power mode scanning, the image parameter area in the upper right corner of the screen
displays the real-time parameter values as follows:
Parameter
F
G
PRF
WF
Meaning
Frequency
Power Gain
Pulse Repetition
Frequency (PRF)
Power Wall Filter
 During Power mode imaging, menus of image optimizing for B mode and Power mode are
displayed on the touch screen at the same time. You can switch between the 2 modes by
clicking the mode tabs.
 In Power mode, acoustic power is synchronous with that of B mode. Adjustment of the depth to
the B mode image will lead to corresponding changes in Power mode image.
Parameters consistent with those in Color mode and B mode are not described, please refer to
relevant sections of the Color mode and B mode, while special items of the Power mode are
introduced in the following.
5.5.3 Power Mode Image Optimization
Power Gain
Description
Refers to the overall sensitivity to flow signals, and this function is used to adjust
the gain in Power mode.
The real-time gain value is displayed in the image parameter area in the upper
right corner of the screen.
Operations
Rotate the <Color> knob clockwise to increase the gain, and anticlockwise to
decrease.
The adjusting range is 0-100.
Effects
Increasing the gain will increase the flow signal presented as well as noise, while
the signals may be missing when the gain is adjusted too low.

Mindray DC-80 Specifications

General

Brand	Mindray
Model	DC-80
Category	Diagnostic Equipment
Language	English