Draminski BLUE - Power Doppler; Power Doppler Settings; Postprocessing; Frame Averaging for Power Doppler (Averaged Filter; Non-Averaged Filter)

DRAMIŃSKI BLUE – user manual
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10.8. Power Doppler
In the Power Doppler mode the device sums the ows in a particular place and shows in the picture general
vascularization of the organ without showing the speed and direction of the ow. Thanks to this function it is
possible to show the vascularization of the organ depicting even very slow ows.
10.8.1. Power Doppler settings
Basic operating parameters (PRF, frequency, gain, frame angle, color threshold, color range and high-pass lter)
are set in the same way as for Color Doppler <10.7.4.>
10.8.1.1. Postprocessing
This function is used for smoothing map of colors for Power Doppler mode.
[Mode -] button disables image processing, whereas [Mode +] button enables it.
10.8.1.2. Frame Averaging for Power Doppler (Averaged Filter / Non-Averaged Filter)
This function allows for averaging data collected from previous frames, for enabled and disabled postprocess-
ing respectively <10.8.1.1.>.
Other keys as for the Color Doppler
10.9. Pulse Wave Doppler
The Pulse Doppler function allows you to measure blood ow rate at a specic depth.
To enable this function, switch to Doppler mode and press [Pulse Doppler].
10.9.1. Pulse Wave Doppler settings
For the best results it is necessary to obtain the sharpest angle to the vessel.
In Color Doppler mode set the test parameters so that to obtain the optimal Doppler spectrum. The examined
vessel should be visible in a large part of the screen.
10.9.1.1. Sampling gate depth
The sampling gate should be set to coincide with the ow spectrum.
[Depth - ] and [Depth + ] buttons can be used to move the gate up and down along sampling line of color box.
You can also drag whole color box with your nger and the sampling gate will follow.
10.9.1.2. Insonation Angle
Set insonation angle using a slider possibly in parallel to the direction of blood ow. Insonation angle is marked
with green line.
Remember that exceeding 60° will signicantly increase possibility of wrong result!
10.9.1.3. Sampling gate width
Set the gate's width using the [Width +] and [Width -] buttons. Better if it is 50% of the blood vessel diameter.