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The average distance error in mm of the data-driven estimates using PI, NMI and MI cost functions relative to the external-tracking estimates in patient studies
| Patient Study | PI | NMI | MI |
|---|---|---|---|
| 1 | 8.31 | 8.32 | 5.56 |
| 2 | 6.68 | 5.18 | 3.55 |
| 3 | 3.74 | 4.76 | 4.48 |
| 4 | 4.67 | 2.76 | 5.42 |
| 5 | 4.29 | 9.06 | 12.19 |
| Average | 5.54±1.91 | 6.02±2.62 | 6.24±3.42 |
