Table 1.
Configurations of abstraction level (abstract or anatomical), position (overlay or small offset), and dimensionality (2D or 3D) used to derive the AR visualizations and the standard navigation
| Visualization concept | Abstraction level | Position | Dimensionality | Device |
|---|---|---|---|---|
| ‘Standard Navigation’ | Anatomical | Large offset | 2D | External screen |
| ‘3D Overlay’ | Anatomical | Overlay | 3D | HoloLens 2 |
| ‘Virtual Twin’ | Anatomical | Small offset | 3D | HoloLens 2 |
| ‘Sectional Views’ | Anatomical | Small offset | 2D | HoloLens 2 |
| ‘Target Cross’ | Abstract | Small offset | 2D | HoloLens 2 |
| ‘Peripheral Rings’ | Abstract | Overlay | 2D | HoloLens 2 |