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User Manual
OB Measurement Menu Settings
Set up the GA Equation, GA Table, and OB measurement menus that are used in obstetrics
measurements. The user can manually write, back up or restore GA Tables. For more information
on the GA Equation and Table, refer to the Reference Manual Part 1.
NOTE: For twins, distinguish fetuses by specifying them as Fetus A and Fetus B in the Measurement
menu. Either click the Fetus button displayed at the top of the left-hand menu or rotate the dial-
button 1 to select the fetus to measure among A, B, C, and D.
For menus related to measurement and their settings, refer to the ‘Measurement Settings’ in
‘Chapter 3. Utilities’ of this manual.
1 Trim. Measurement Menu
When the measurements for the selected items are complete, the measurements and gestational
age are displayed on the screen. The measurement method for each item is the same as for basic
measurement. Measured items are automatically entered into the report.
Measurement Menu Item Mode Method Unit
Fetal Biometry
GS All Distance measurement cm
YS All Distance measurement cm
CRL All Distance measurement cm
BPD All Distance measurement cm
FL All Distance measurement cm
AC All Circumference measurement cm
Fetal Cranuim
NT All Distance measurement mm
IT All Distance measurement mm
NB All Distance measurement cm
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