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Frequency
Adjusts the transmission frequency in Doppler to control
sensitivity or level of penetration. The selected frequency is
displayed in the status window. Adjusting Frequency may affect
Sample Volume (PW) and LVR settings.
Frame rate
Adjusts the frame rate. The relative setting of the frame rate is
displayed in the status window (under 2D).
Power
Controls the amount of acoustic power applied in all modes.
When power is re-
duced, it reduces
When power is set to maximum, it is equal to or less than the
the signal-to-noise
maximum acoustic power permitted by the FDA. The Thermal
ratio, so that the im-
Index (TI) and the Mechanical Index (MI) are displayed on the
age may become
screen.
noisier.
Vivid i User's Manual
2378958-100 Rev. 02
Scanning Modes
97
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