Mindray DP-50 Exp Vet, Руководство оператора

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Image Optimization 5-19
Operations To select among the maps, turn the knob under [Map] on the image menu.
There are 8 kinds of maps provided: P0-P3 belong to Power mode maps,
while dP0-dP3 belong to Directional Power mode maps.
The Power maps provide information of blood flow, which are highly sensitive
to the low-velocity flows.
The Directional Power maps provide information of flow direction.
Dynamic Range
Description This function is to adjust the transformation of echo intensity into color signal.
Operations Click the [Dynamic Range] item on the image menu to adjust the dynamic
range.
The adjusting range is 10-70dB in increments of 5dB.
Effects Increasing dynamic range will lead to higher sensitivity to low-power signals,
thus enhances the range of signals to display.
5.8 PW Doppler Mode
PW (Pulsed Wave Doppler) mode is used to provide blood flow velocity and direction
utilizing a real-time spectral display. The horizontal axis represents time, while the vertical
axis represents Doppler frequency shift.
PW mode provides a function to examine flow at one specific site for its velocity, direction
and features.
PW is optional.
5.8.1 Basic Procedures for PW Mode Exam
1. Select a high-quality image during B mode scanning.
2. Press the user-defined key for the PW mode to adjust the sampling line,

The sampling status will be displayed in the image parameter area in the upper right
corner of the screen as follows:
PW Sampling Line
Adjustment SV
Angle
SVD
3. Set the position of the sample line by moving the trackball left and right, and set the
SVD by moving the trackball up and down, adjust the angle and SV size according to
the actual situation.