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Chapter 5 Measurements And Calculations
Calculating Estimated Fetal Weight (EFW)
Estimated fetal weight is calculated automatically when the following items are measured. For
information on formulae used for EFW calculation, see ‘Estimated Fetal Weight Formula’ in the
Reference Manual – Part 1.
X
BPD and AC
X
BPD and FL, FTA
X
BPD and APTD, TTD, FL
X
BPD and APTD, TTD, SL
X
BPD and TTD
X
BPD and APTD, TTD
X
AC and FL
X
BPD and AC, FL
X
HC and AC, FL
X
BPD and HC, AC, FL
X
AC
NOTE: For reference, the Osaka University / Tokyo University methods are mainly used in Asia, the
Merz method in Europe, and the Shepard / Hadlock methods in the Americas.
GYN Calculations
The measurement method for each item is the same as for basic measurement. Measured items are
automatically recorded in a report.
[Figure 5.4 GYN Measurement Menu]
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