Comparison of Software and Hardware Image Fusion
| Software fusion | Hardware fusion |
|---|---|
| Image retrieval from different archives | Images available from 1 device |
| Carefully controlled patient positioning | Single patient positioning |
| Different scanner bed profiles | Same bed for both scans |
| Uncontrolled internal organ movement | Little internal organ movement |
| Disease progression in time | Scans acquired close in time |
| Limited registration accuracy | Improved registration accuracy |
| Less convenient for patient (2 scans) | Single integrated scan |
| Labor-intensive registration algorithms | No further alignment required |