11 - 18 Operator’s Manual
11 Measurement and Report
11.4.2 Obstetric Measurement Tools
Obstetric measurements are used to estimate the GA and EDD and calculate the growth indices,
including the EFW.
The obstetric measurement tools are applied in but not limited to the following exam modes:
•OB1
•OB2/3
•EM OB
Measurement items
Pleural Pleural L, Pleural H, Pleural W Use Distance to measure
the 3 distances and
calculates the Volume.
UQ (Upper Quadrant) UQ L, UQ H, UQ W
Pelvis Pelvis L, Pelvis H, Pelvis W
Pericardial Sac Pericardial Sac L
Pericardial Sac H
Pericardial Sac W
Tools Measurement items included Methods or formulae
Tools Descriptions Methods in Basic Measurement
CRL Crown Rump Length Distance,Trace and Spline.
GS Gestational Sac Diameter Distance
TCD Cerebellum Diameter Distance
BPD Biparietal Diameter Distance
HC Head Circumference Ellipse, Trace, Cross and Spline
Head Circumference: in the HC
measurement, if the measurement cursor
of BPD appears on the screen, then the
measurement starting point will be
automatically positioned at the
measurement cursor starting point of the
last BPD. If you use “Ellipse” to
measure the HC, the measurement
cursor of the last BPD will be the first
axis of the ellipse in the default status.
AC Abdominal Circumference
FL Femur Length Distance
HUM Humerus Length
APTD Anteroposterior trunk diameter
TTD Transverse trunk diameter
FTA Fetal Trunk Cross-sectional Area Area
To Next Page
Loading...
Need help?
General
