GE Voluson S6 Basic User Manual page 340

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9.12.4 Selection of a VOCAL Generation Mode

9.12.4.1 Manual - Trace

The main contour axis should pass the center of the 3D lesion. (The 3D object should be

centered with respect to the rotation axis.) All defined contours (in different planes) cross the

main contour axis at the position of the green arrows. If not, change the position of this line by

using the trackball.

There are three major possibilities to generate a (shell) contour:

(chapter 'Manual - Trace' on page 9-122 )

Manual - Trace

(chapter 'Automatic - Sphere' on page 9-123 )

Automatic - Sphere

This function allows you to manually outline any lesion by means of the trackball. Alternatively,

trace the object on the menu area with your finger. The number of manually generated

contours depends on the selected rotation step. For details review: VOCAL Settings

on page 9-121 )

'VOCAL Settings'

1. In the "VOCAL Modes" menu, select the [Manual - Trace] contour mode

2. To define the contour, select the [Start] key.

3. Position the cursor for starting the contour with the trackball and press the right or left

trackball key [Set]. Outline the first contour by means of the trackball. To fix the contour,

press the right or left trackball key [Set] again.

The two green arrows of the contour points are automatically positioned on the main contour

axis. The outlined contour is only valid if the rotation axis is crossed exactly twice.

Voluson® S6/S8 Basic User Manual

5433669-100 Revision 4

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