Optimizing the Image
5-8 LOGIQ 7 Online Help
Direction 2392536-100 Rev. 1
Focus
Description Increases the number of focal zones, moves the focal zone(s)
and changes the zone width so that you can tighten up the beam
for a specific area. A graphic caret corresponding to the focal
zone position(s) appears on the right edge of the image.
Adjusting To increase/decrease the number of focal zones, adjust Focus
Number.
NOTE: Focus Position and Focus Number share the same control.
Press the control to toggle between Focus Position and Focus
Number.
To move the focal zone to the near/far field, adjust Focus
Position.
You can reverse how the Focus control functions on the Utility ->
System -> General page.
NOTE: Each adjustment cycles you to the next setting.
To change the zone width, use Focus Width on the B-Mode
Touch Panel page 2.
Values Eight focal zones over twelve focal positions. In B Flow only one
focus zone. Focus zone number and position vary depending on
the depth, zoom, probe, application, and frequency setting
selected.
Focal zone number values are returned to the factory or user
preset value when you change the following: Probe, Exam
Category, Exam Calc, or New Patient.
Benefits Focus optimizes the image by increasing the resolution for a
specific area.
Affect on other
controls
Changing the focal number affects the frame rate. The greater
number of focal zones, the slower the frame rate.
Bioeffects Changing the focal zone may change the TI and/or MI. Observe
the output display for possible effects.
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