e. Patient-reported dates
13. In the amniotic fluid index package, the report contains:
a. AFI: amniotic fluid index
b. Measurement inputs
c. Patient-reported dates
14. In the Crown Rump Length package, the report contains:
a. Gestational age
b. Measurement inputs
c. Patient reported dates
15. In the Mean Sac Diameter package, the report contains:
a. Gestational Age according to the Mean Sac Diameter equations
b. Estimated Delivery Date according to the Mean Sac Diameter equations
NOTE
Mean Sac Diameter should not be solely relied upon to project date of delivery.
16. You will exit the obstetric calculations package when you upload your study. To exit an obstetric calculations
package before uploading a study, select the X on the bottom of your screen or select the Actions menu and exit
by selecting the X underneath. You will be prompted to confirm exporting or deleting of captured measurements
if you exit via the Actions menu or the bottom of your screen.
17. Once the specified calculation package is exported, the output will be available in the notes field of the study.
This can be retrieved and edited in the study reel prior to upload. After uploading the study, notes are available
in the archive screen and in the desktop cloud.
8.2. Manually Calculate Volume
The manual volume calculation package can be used to generate a volume measurement using the prolate ellipsoid
method. This functionality uses the equation 0.52 * (D1) * (D2) * (D3) to calculate volume.
Manually Calculating Volume
1. From the scan screen, select one of the following presets: Abdomen, Abdomen Deep, Bladder, MSK-Soft
Tissue, Musculoskeletal, Nerve, or Small Organ.
2. Select the Actions button
on the bottom right corner of the screen.
3. Under the “Calculations” heading, select Manual Volume.
4. When you have identified a view you would like to capture, select the freeze button to freeze the image.
5. Tap the Actions button on the bottom of the screen.
6. Select one of the measurements to begin measuring. You will have the option of selecting D1, D2, or D3.
7. Adjust calipers as appropriate. As the calipers are adjusted, the measurement label will adjust to show the
input.
8. Once satisfied with caliper placement, tap the confirm button to add the measurement to the report and capture
an image.
9. Only one of each measurement may be added. To edit an input, delete it from the report and re-measure.
10. At the bottom of the screen, your measurements will be visible. When you take all three measurements, an
estimated volume will appear at the bottom of the screen.
Manually Calculate Volume
Manual Calculations Packages 43
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