What Is the Virtual C-arm?
The Virtual C-arm generates a simulated X-ray projection of the loaded volume, similar to the fluoroscopy images produced by a real C-arm device in the operating room. This gives you a familiar radiographic perspective alongside the standard 3D view.
Opening the C-arm View
Click the C-arm button in the toolbar to open the C-arm panel. The simulated projection renders automatically based on the current volume.Zoom and Pan
Pointer and Arrow Overlay
Pointers and arrows placed in the main 3D view are overlaid on the C-arm projection in their correct anatomical positions. This allows you to see how placed markers relate to the projected anatomy — the same way hardware appears on real fluoroscopy.- Pointers appear as their chosen icon at the projected location.
- Arrows appear as projected lines with direction indicators.
Adjusting the Projection Angle
Use the angle controls in the C-arm panel to rotate the projection:
Changing the angle re-renders the projection in real time.
The Virtual C-arm works with both MRI and CT volumes. CT volumes typically produce sharper bone detail in the projection due to their higher inherent bone contrast.