5-18 Image Optimization
5.5 Power Mode Image Optimization
Power mode provides a non-directional display of the blood flow in terms of intensity as opposed
to flow velocity.
DirPower (Directional Power mode) provides additional information of the flow direction toward 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 position the
area of interest in the center of the image.
2. Tap [Power] on the right side of the operating panel to enter Power mode.
3. Change the size and position of the ROI (the same as in Color mode).
4. Adjust the image parameters during B + Power mode scanning to obtain optimized images.
Tap [Image] to open the image menu. Adjust the parameters to optimize the image.
5. 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 top-left corner of the screen
displays the real-time parameter values as follows:
Pulse Repetition
Frequency (PRF)
In Power mode, the 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. See the relevant
Color mode and B mode sections, while special items of the Power mode are introduced in the
following.