GE Logiq P5 User Manual
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OB Exam LOGIQ 5 Basic User Manual 9-5 Direction 2300002-100 Rev. 2 To Start an Obstetrics Exam (continued) NOTE: To fill in the following information, move the Trackball to highlight the Detail button and press Set. Table 9-1: Obstetric fields FieldDescription LMP Last Menstrual Period; enter the date that the patient started her last menstrual period, in mm/dd/yyyy format. You must enter 4 digits for the year. When you type the month and day, the system fills in the /. BBT Basal Body Temperature. EDD by LMP Estimated Delivery Date by LMP; the system fills in the date after you enter the LMP. GA by LMP Gestational Age by LMP; the system fills in the age after you enter the LMP. Gravida Number of pregnancies. Para Number of births. AB Number of abortions. Ectopic Number of ectopic pregnancies. Fetus # Number of fetuses; default is 1. Can be 1-4. Accession # Exam number used with hospital information system (DICOM). This is a tracking number from the worklist. Exam DescriptionDescribe the type of exam. Perf Physician The physician who performs the exam. Choose from the list or type the name. Ref. Physician The physician who requested the exam. Choose from the list or type the name. Operator The person (not a physician) who performs the scan. Choose from the list. Table 9-2: Obstetric fields: Detail FieldDescription Indications Why the patient needs the ultrasound exam. Comments Comments about the exam.
OB/GYN 9-6 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 To Start an Obstetrics Exam (continued) After you complete the patient information, you can begin the scan. 1. To change from the Patient Data Entry screen to the Scan screen, do one of the following: • On the keyboard, press Esc or Patient. • On the Touch Panel, select Scan. • On the Control Panel, press the B-Mode key. The system displays the Scan screen. 2. To choose the appropriate probe, select the probe icon on the Touch Panel. 3. On the Control Panel, press Measure. The default Obstetrics study is displayed on the Touch Panel . Figure 9-1 shows the OB-General study. Figure 9-1. OB-General Study
OB Exam LOGIQ 5 Basic User Manual 9-7 Direction 2300002-100 Rev. 2 To choose a study 1. To change the study, on the Touch Panel, select Study. The Obstetrics exam category allows you to choose from the following studies: • Generic • OB-1 • OB-2/3 • OB-General • Fetal Heart • OB/GYN Vessel 2. To select a study, press the study folder on the Touch Panel. Figure 9-2. OB Study Touch Panel NOTE: The folders you see on the Touch Panel may be different if your system has been customized.
OB/GYN 9-8 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 OB Measurements and Calculations Introduction Measurements and calculations derived from ultrasound images are intended to supplement other clinical procedures available to the attending physician. The accuracy of measurements is not only determined by the system accuracy, but also by use of proper medical protocols by the user. When appropriate, be sure to note any protocols associated with a particular measurement or calculation. Formulas and databases used within the system software that are associated with specific investigators are so noted. Be sure to refer to the original article describing the investigators recommended clinical procedures.
OB Measurements and Calculations LOGIQ 5 Basic User Manual 9-9 Direction 2300002-100 Rev. 2 Introduction (continued) When you make measurements, you can select the calculation before you make the measurement or after you make it. If you select the calculation before you make the measurement, the Results Window shows the estimated fetal age as you make the measurement. If you select the calculation after you make the measurement, the estimated fetal age is displayed after you complete the measurement. The measurements steps in this section tell you to select the calculation before you make the measurement. The following pages describe how to make OB measurements and calculations. The measurements are organized by mode, and within mode are listed in alphabetical order. Out of Range – If the system indicates that a measurement is out of range (OOR), it means 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. NOTE: Calculation formulas are listed in the Advanced Reference Manual.
OB/GYN 9-10 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 B-Mode Measurements This section describes all B-Mode measurements that you typically find in OB studies. Abdominal Circumference (AC) To calculate abdominal circumference, you make an ellipse, trace, or two distance measurements. Ellipse1. Select AC; an active caliper displays. 2. If necessary, select AC until Ellipse is displayed above the key. 3. To position the active caliper, move the Trackball. 4. To fix the start point, press Set. The system fixes the first caliper and displays a second active caliper. 5. To position the second caliper, move the Trackball. 6. Adjust the Ellipse control; an ellipse with an initial circle shape displays. • To position the ellipse and to size the measured axes (move the calipers), move the Trackball. • To increase the size, adjust the Ellipse control in a clockwise direction. • To decrease the size, adjust the Ellipse control in a counterclockwise direction. • To toggle between active calipers, press Measure. 7. To complete the measurement, press Set. The system displays the circumference in the Results Window. USAEuropeTokyoOsakaASUM HINTSBefore you complete the ellipse measurement: • To erase the ellipse and the current data measured, press Clear once. The original caliper is displayed to restart the measurement. • To exit the measurement function without completing the measurement, press Clear a second time.
OB Measurements and Calculations LOGIQ 5 Basic User Manual 9-11 Direction 2300002-100 Rev. 2 Abdominal Circumference (AC) (continued) Trace1. Select AC; an active caliper displays. 2. If necessary, select AC until Trace is displayed above the key. 3. To position the trace caliper, move the Trackball. 4. To fix the trace start point, press Set. The trace caliper changes to an active caliper. 5. To trace the measurement area, move the Trackball around the anatomy. 6. To complete the measurement, press Set. The system displays the circumference in the Results Window. HINTSBefore you complete the ellipse measurement: • To erase the line (bit by bit) back from its current point, move the Trackball or adjust the Ellipse control counterclockwise. • To erase the dotted line but not the trace caliper, press Clear once. • To clear the trace caliper and the current data measured, press Clear twice.
OB/GYN 9-12 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 Abdominal Circumference (AC) (continued) Two distances1. Select AC; an active caliper displays. 2. If necessary, select AC until Trace is displayed above the key. 3. To make the first distance measurement: a. To position the active caliper at the start point, move the Trackball. b. To fix the start point, press Set. The system fixes the first caliper and displays a second active caliper. c. To position the second active caliper at the end point, move the Trackball. A dotted line connects the measurement points. d. To complete the measurement, press Set. The system displays the distance value in the Results Window. After the first measurement, the system displays an active caliper. 4. To make the second distance measurement, repeat steps a–d above. The system displays the abdominal circumference in the Results Window. HINTS• Before you complete a measurement (press Set): • To toggle between active calipers, press Measure. • To erase the second caliper and the current data measured and start the measurement again, press Clear once. • To rotate through and activate fixed calipers from other measurements, adjust Cursor Select. • After you complete the measurement, to erase all data that has been measured to this point, but not data entered onto worksheets, press Clear.
OB Measurements and Calculations LOGIQ 5 Basic User Manual 9-13 Direction 2300002-100 Rev. 2 A/B Ratio In B-Mode you can calculate A/B ratio by diameter or by area. DiameterTo calculate A/B ratio by diameter: 1. Select A/B Ratio. 2. Select ratio(Diam). The system displays an active caliper. 3. Make a distance measurement of the first velocity. a. To position the active caliper at the start point, move the Trackball. b. To fix the start point, press Set. The system fixes the first caliper and displays a second active caliper. c. To position the second active caliper at the end point, move the Trackball. A dotted line connects the measurement points. d. To complete the measurement, press Set. The system displays the distance value in the Results Window and displays an active caliper for the second distance measurement. 4. To make a distance measurement of the second velocity, repeat steps a–d. The system displays each distance measurement and the A/B ratio in the Results Window.
OB/GYN 9-14 LOGIQ 5 Basic User Manual Direction 2300002-100 Rev. 2 A/B Ratio (continued) AreaTo calculate A/B ratio by area: 1. Select A/B Ratio. 2. Select ratio(Area). The system displays a trace caliper. 3. Make a trace measurement of the A velocity: a. To position the trace caliper at the start point, move the Trackball. b. To fix the trace start point, press Set. The trace caliper changes to an active caliper. c. To trace the measurement area, move the Trackball. A dotted line shows the traced area. NOTE: To erase an open trace, move the Trackball. d. To complete the measurement, press Set. After the first measurement, the system displays a second trace caliper. 4. To make a trace measurement of the B velocity, repeat steps a–d. The system displays the two area measurements and the A/B ratio in the Results Window.