U60 Diagnostic Ultrasound System User Manual Obstetric Measurements and Calculations
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8.4.1. Growth Curve
You can define the fetus growth by comparing the measured parameter value with the fetus
growth curve.
Operation procedure:
1. Measure one or more fetus growth parameters (GS, CRL, BPD, FL, AC, HC, CER, FTA,
HUM, or THD).
2. Enter BBT.
3. In the B-obstetric menu, roll the trackball to highlight Growth Curve and press Set, and the
fetal growth analysis dialog box will be displayed in the middle of the screen.
4. The default tab is GS and the formula of the current growth curve. Move the cursor to another
formula in the pull-down menu, and press Set to display the normal growth curve based on
the selected formula, which can define how the fetus grows.
5. Move the cursor to another tab in the pull-down menu, and press Set to display the growth
curve of another measurement item and the phase of the growth corresponding to the
measured data.
The signification of the growth curves is shown below and the x-coordinate shows the phase of
the growth corresponding to the entered BBT, and the y-coordinate shows the measured data.
Move the cursor to Close, and press Set to exit.
Figure 8-5 Fetal Growth Curve (Single)
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