GE Logiq P5 User Manual
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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.
OB/GYN 9-56 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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 LOGIQ 5 Basic User Manual 9-57 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
OB/GYN 9-58 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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
OB/GYN 9-60 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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 LOGIQ 5 Basic User Manual 9-61 Direction 2300002-100 Rev. 2 To View OB Graphs To view OB graphs: 1. Press Measure. 2. Select Graph Display. Figure 9-10. B-Mode OB Measurement Touch Panel
OB/GYN 9-62 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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 LOGIQ 5 Basic User Manual 9-63 Direction 2300002-100 Rev. 2 To View OB Graphs (continued) The monitor display shows the Fetal Growth Curve Graph. Figure 9-12. Fetal Growth Curve Graph
OB/GYN 9-64 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 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).