OB Summary Reports
LOGIQ 500 Basic Users Manual
2276612–100 Rev. 0
9–29
Composite Age Determination
The composite fetal age is displayed as CUA (Composite
Ultrasound Age) on the USA Report and CGA (Composite
Gestational Age) on the European, Tokyo University and Osaka
University Reports.
NOTE: There is a preset selection to choose how gestational
age is derived for the USA Hadlock formulas. The “CUA/AUA
for Hadlock” preset, found on System Parameters page 3,
allows gestational age to be derived by linear regression (CUA)
or averaging (AUA).
The CUA or CGA field can be edited on the report page by the
designation ‘Y’ for yes or ‘N’ for no.
‘Y’ will include the last measurement or measurement average
in the calculation composite age. Changing the CUA/CGA
designation to ‘N’ will exclude the measurement from the
composite age calculation. The default value is ‘Y’.
NOTE: There is a preset selection on Set Up/System
Parameters page one that allows for the resetting of the CUA
fields at New Patient selection (Reset on or off).
Fetal Weight Estimates
The estimated fetal birth weight calculation varies by region.
EFW or EFBW is calculated for:
USA Version—The USA OB EFW Calculation method is
selected in the Set Up/System Parameters page 2. The system
automatically selects 1 of the 5 available formulas based on the
measurements taken. Refer to
9–11
for formula details.
Tokyo or European Version—It is based on the formula selected
in the Set Up/System Parameter menu page 2.
Osaka University Version—It is based on a single formula listed
on
9–9
. Standard Deviation is also displayed with EFBW in the
Osaka University OB Report.
Summary of Contents for 500
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