OB Measurements and Calculations
LOGIQ 7 Basic User Manual 9-17
Direction 2392206-100 Rev. 1
Head Circumference (HC) (continued)
Trace 1. Select HC; an active caliper displays.
2. If necessary, select HC until Trace is displayed above the
key.
3. To position the trace caliper, move the Trackball.
4. To fix the trace start point, press Set.
The trace caliper changes to an active caliper.
5. To trace the measurement area, move the Trackball around
the anatomy.
6. To complete the measurement, press Set.
The system displays the circumference in the Results
Window.
HINTS
Before you complete the ellipse measurement:
• To erase the line (bit by bit) back from its current point,
move the Trackball or adjust the Ellipse control
counterclockwise.
• To erase the dotted line but not the trace caliper, press
Clear once.
• To clear the trace caliper and the current data measured,
press Clear twice.
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