Scanning Modes
Vivid i User’s Manual 97
2378958-100 Rev. 02
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
When power is re-
duced, it reduces
the signal-to-noise
ratio, so that the im-
age may become
noisier.
Controls the amount of acoustic power applied in all modes.
When power is set to maximum, it is equal to or less than the
maximum acoustic power permitted by the FDA. The Thermal
Index (TI) and the Mechanical Index (MI) are displayed on the
screen.
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