MediSono P11 EXP, Руководство пользователя

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P11 EXP
Portable Digital Color Doppler Ultrasound System
5-5
F1
F2
The depth knob controls the depth range of the ultrasound image. The system
automatically adjusts the frame rate (FPS) and acoustic power indices (TI, MI ...)
according to the depth.
• Flip the
DEPTH
switch downwards to increase the depth range of the 2D image and
the size of image is reduced to display the entire ultrasound image.
• Flip the
DEPTH
switch upwards to decrease the depth range of the 2D image and
the ultrasound image is magnified.
✖
Remarks:
• The range of the scanning depth depends on the probe type. Depth is
represented in unit of cm.
•
The depth scale is shown on the right side of the ultrasound image.
• The current depth is displayed at the 2D Image Info area and repre-
sented by
D
.
5.3.6 Focal Zones
The focal zone determines the depth range for optimizing the concentration of the ultrasound
beam.
Multiple focal zones are possible. The marker ) for focal zone is indicated at the depth
scale.
FOCAL NUMBER
Use this function to change the number of focal zones.
• press
to select FOCAL NUMBER .
• turn the function knob to change the number of focal zones.
FOCAL SPAN
This function changes the span of focal zones, or equivalently the distance between the
focal zones.
• press
to select FOCAL SPAN .
• turn the function knob to change the span of focal zones.
The focal depth is adjustable during the real time scan regardless of the
imaging mode (B, CFM, PW/CW, . . . ) and the display format (single, dual,
quad).
If multiple focal zones are present, they are moved with the same amount of
depth. To change the depth position(s) of the focal zone(s):
• flip the
• flip the
switch downwards to move the focal zones to deeper locations.
switch upwards to move the focal zones to shallower locations.
✖
Remarks:
• The maximum number of focal zones depends on the probe in use.
• Increasing the focal number decreases the frame rate and increases
the acoustic power indices.
• Increasing the focal zone depth increases the acoustic power indices.
FOCUS
FOCUS