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Imaging Mode
7.4.7
Power Mode
Power Mode Overview
Power Mode allows the observation of blood flow using backscatter intensi-
ty of ultrasound signal from blood cells.
Power Mode Main Menu Controls
Table 7-19: Power Mode Main Menu Controls
Parameter
Scale
LVRej
Rev 1.00
－
＋
Figure 7-28: Power Mode Screen
1
Probe orientation marker
2
Color bar
3
Color ROI
4
Power Mode parameters window
5
Power Mode Soft menu
6
Power Mode Main menu
Description
Adjusts the repetition rate of the Doppler pluses transmit-
ted when acquiring the data for color flow mapping. The
Scale (Nyquist limit) should be adjusted so that no aliasing
occurs, while still having good resolution of velocities. The
Nyquist limit should be somewhat above the maximum
velocity found in the data.
LVR, also called Wall motion filter, adjusts the extent of low
velocity removal.
Chapter 7 - System Operation
137
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