GE Voluson S8 - 11.2.4.7 AFI Calculation; 11.2.4.8 Early Gest.

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11.2.4.7 AFI Calculation

To calculate AFI, the Amniotic Fluid Index (distances are measured in several images):

1. Press the [Calc] key on the control panel.

Select the [AFI] key and then select [Q1].

3. Use the trackball to move the cursor to the start point of the measurement and press the

right or left trackball key [Set] to fix the marker. A second cursor appears.

4. Move the second cursor to the second point of the measurement and press [Set] again.

The distance between the two points is displayed.

Note

To re-adjust the start point, press the upper trackball key [Change] before completing the

measurement. This alternates the control from one cursor to the other.

5. Press [Freeze] to return to the scan mode, record the next image and then press

[Freeze] again.

6. Press the [Calc] key on the control panel, select the [Q2] item and then perform the

measurement using the trackball and the right trackball key.

7. Perform the distance measurement of [Q3] and [Q4] in the same manner.

11.2.4.8 Early Gest. - NT

To calculate NT, the Nuchal Transluceny:

Measurements and Patient Worksheets (Reports)

Voluson® S6/S8 Basic User Manual

5433669-100 Revision 4 11-43

GE Voluson S8 - 11.2.4.7 AFI Calculation; 11.2.4.8 Early Gest. - NT