Adding a 3D Sphere
Introduction
You can create a 3D sphere on 2D, 3D, or fused images to measure density or the maximum SUV inside the sphere. When you add a 3D sphere to 2D, 3D, or fused images, all series with the same frame of reference (FOR) display the 3D circle.
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Note: |
Manual calibration does not apply to volume annotations in 3D sphere . |
Steps
- Right-click the image to display the image context menu.
- Do one of the following:
- Select Annotations > 3D Sphere.
- Press 0 on the keyboard.
- Click the image and hold the left-mouse button down.
- Drag the mouse to the outside edge of your circle and release the mouse button.
- Optional: To change the size of the sphere, click, hold, and drag the edge of the sphere.
Results
For images that do not support SUV measurements, Synapse displays the following measurements:
- Diameter (D)
- Volume (V)
- Maximum density (Max)
For images that support SUV measurements, Synapse displays the following measurements:
- Diameter (D)
- Volume (V)
- Maximum SUV (Max SUV)
- Peak SUV
For fused images, Synapse displays the maximum density for both the overlay and the base images.
Additional Options
Click ROI Sphere 
on the icon menu.
Related Topics