Entering An Ob Table; Identifying The Statistical Type; Choosing The Statistical Expression Of Output (Cga) - GE LOGIQ A100 Technical Publication

Entering an OB Table

Obtain an OB table data sheet of your preference. the
statistical type of the data sheet has to be identified
before the data can be copied to the system.

Identifying the Statistical Type

The statistical expression of variation of input parameter
has to be obtained. The variation of input parameter can
either be:
This information is usually provided by the author of the
OB table.

Choosing the Statistical Expression of Output (CGA)

The ultimate aim of the user table is to not only give the
accurate Gestational Age for a sonographic
measurement, but also give reliable information on
whether the measurement is normal for the DGA or
otherwise. The statistical expression of the output
(Calculated Gestational Age) can be in one of the
following formats:
S
S
S
t
α 100 User Manual
LOGIQ
2211157–100 Rev 0
1. Range of Calculated Gestational Age (e.g. US
table)
OR
2. Standard deviation of input parameter (e.g.
Europe, Osaka tables).
Range (time) Eg. GA = 4w2d 2d
Percentile Score e.g. GA = 4w2d55%
Standard deviation Eg. GA = 4w2d+.4sd
GA = 4w9d–1.3sd
OB User Table
211