GE Logiq P5 User Manual

							OB Measurements and Calculations
LOGIQ 5 Basic User Manual 9-55
Direction 2300002-100 Rev. 2
Measurement information
This section lists the results of all measurements. 
•  CUA or AUA – If this field is checked, the system uses the 
measurement to calculate the ultrasound age. 
•  Value – The measured value. If more than one 
measurement was made for an item, the system uses the 
specified method (average, maximum, minimum, or last) to 
determine this value.
•  m1–m3 – Up to three measurement values for each item. If 
you make more than three measurements, the worksheet 
uses the last three.
•  Method – When there is more than one measurement for an 
item, this specifies the method used to calculate the 
measurement value listed in the Value column. Choices are 
average, maximum, minimum, or last. To change the 
method: 
a. Move the Trackball to the Method field. 
b. Press Set.
c. Move the Trackball to select from the list.
d. Press Set.
•  AGE – The fetal age for this measurement.
•  Range – The typical range of fetal age for this 
measurement. 
						

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Calculation information
This section of the worksheet provides calculation choices and 
lists calculation results.
•  EFW – lists the parameters used to calculate EFW. This is 
followed by the calculation result. 
To change which parameters are used:
a.  Select this field or press Select EFW.
b.  Select the desired parameters.
•  EFW GP – lists the source used to calculate EFW–GP 
(growth percentile). This is followed by the growth 
percentile.
To change the source:
a.  Select this field or press Select GP.
b.  Select the desired source.
The remaining calculation information shows ratios for several 
measurements, and the Cephalic Index (CI). 
The worksheet shows if any of the ratios are out of range 
(OOR). Out of range indicates one of the following:
•  The measurement is out of the normal range based on the 
gestational age that is calculated from the LMP. The system 
determines OOR from the ultrasound age compared to the 
gestational age. The gestational age is calculated from the 
last menstrual period or the estimated delivery date.
•  The measurement is outside of the range for the data used 
in the calculation. That means that the measurement is 
either less than or more than the range of measurements 
used to determine fetal age based on the measurement.
For more information about how to use the worksheet, See 
‘Viewing and Editing Worksheets’ for more information. 
						

							Anatomical Survey
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Direction 2300002-100 Rev. 2
Anatomical Survey
Overview
The Anatomical Survey page provides a checklist that indicates 
which anatomy was imaged and its appearance.
 Figure 9-7. Anatomical Survey 
						

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Editing
•  To activate the Anatomical Survey, select Anatomy on the 
OB Worksheet Touch Panel.
 Figure 9-8. OB Worksheet Touch Panel
•  Fill the required field.
Table 9-3: Anatomical Survey
FieldDescription
Fetus Pos Indicate the fetal position within the uterus.
PLAC Identify the location of the placenta.
ANATOMY Enter the following information for each part of the 
anatomy imaged:
1. Imaged? : Check the box that you did image this part 
of the anatomy.
2. Appearance : If you checked the Imaged? box, 
indicate whether the appearance was normal or 
abnormal.
You can add the required anatomy up to 9 additional 
anatomy.
Move the Trackball to the blank field.
Enter the anatomy name. 
						

							Anatomical Survey
LOGIQ 5 Basic User Manual 9-59
Direction 2300002-100 Rev. 2Select Exit to return to the Scan screen.
Select Worksheet to return to the Worksheet or Graph to enter 
the OB Graph screen on the Touch Panel.
 Figure 9-9. Anatomical Survey Touch Panel
NOTE:  The contents input on the Anatomical Survey page are returned 
to the factory default settings after starting a new patient. 
BIOPHYSICAL The score is _ of 10 possible total points, depending 
upon the number of parameters entered. Enter the 
following information to assess the fetus’s biophysical 
well-being.
Movement Type 0, 1 or 2
Tone Type 0, 1 or 2
Breathing  Type 0, 1 or 2
Fluid  Type 0, 1 or 2
Reactive NST 
(Reactive non-
stress test)Type 0, 1 or 2
COMMENTS Free text
Table 9-3: Anatomical Survey
FieldDescription 
						

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OB Graphs
Overview
OB Graphs allow you to assess fetal growth compared to a 
normal growth curve. When a patient has completed two or 
more ultrasound exams, you can also use the graphs to look at 
fetal trending. For multi-gestational patients you can plot all 
fetuses and compare the growth on the graphs. 
The LOGIQ 5 provides the following two basic types of graphs:
• Fetal Growth Curve graphs – show one measurement per 
graph. These graphs show the normal growth curve, 
positive and negative standard deviations or applicable 
percentiles, and ultrasound age of the fetus using the 
current measurement. For multi-gestational pregnancies, 
you can view all fetuses. If previous exam data is available, 
the graph can show fetal trending.
• Fetal Growth Bar graph – shows the ultrasound age and 
the gestational age based on patient data. Plots all 
measurements on one graph.  
						

							OB Graphs
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To View OB Graphs
To view OB graphs:
1. Press Measure.
2. Select Graph Display. 
 Figure 9-10. B-Mode OB Measurement Touch Panel 
						

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To View OB Graphs (continued)
After you select Graph Display, the system displays the OB 
Graph keys on the Touch Panel. 
 Figure 9-11. OB Graph keys on Touch Panel 
						

							OB Graphs
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To View OB Graphs (continued)
The monitor display shows the Fetal Growth Curve Graph.
 Figure 9-12. Fetal Growth Curve Graph 
						

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Fetal Growth Curve Graph
The horizontal axis shows the fetal age in weeks. The system 
determines this age from the data on the Patient Data Entry 
screen. The vertical axis shows one of the following:
•  For measurements, mm or cm
•  For ratios, percent
•  For fetal weight, grams
The Fetal Growth Curve Graph shows the following information 
for the selected measurement:
•  The normal growth curve
•  The standard deviations or relevant percentiles
•  The gestational age of the fetus, using patient data (vertical 
dotted line)
•  Using the current ultrasound measurement data, where the 
fetus is on the growth curve 
The legend at the bottom of the graph shows the symbols and 
colors that indicate data for fetal trending (Past and Present) 
and multiple gestation (Fetus).