Table 1.
Percentages of detectability of the fiducials
| Patient | Arc | Percentage | At least one fiducial detectable | ||
|---|---|---|---|---|---|
| F1 | F2 | F3 | |||
| 1 | CW | 50.0 | 60.4 | 53.0 | 87.1 |
| CCW | 44.1 | 27.1 | 34.3 | 62.8 | |
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| 2 | CW | 20.9 | 24.5 | 31.5 | 49.0 |
| CCW | 65.4 | 61.3 | 66.6 | 90.2 | |
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| 3 | CW | 41.0 | 25.2 | 40.4 | 60.7 |
| CCW | 3.2 | 7.9 | 0.1 | 10.9 | |
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| 4 | CW | 27.5 | 12.8 | 17.0 | 28.6 |
| CCW | 16.8 | 26.7 | 26.6 | 35.6 | |
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| 5 | CW | 77.1 | 27.1 | 28.0 | 85.4 |
| CCW | 4.9 | 29.3 | 24.8 | 41.7 | |
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| 6 | CW | 58.7 | 70.0 | 20.8 | 82.4 |
| CCW | 0.0 | 0.0 | 13.7 | 13.7 | |
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| 7 | CW | 56.9 | 50.6 | 51.0 | 65.5 |
| CCW | 26.4 | 19.2 | 26.4 | 44.9 | |
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| 8 | CW | 49.7 | 63.4 | 44.9 | 94.5 |
| CCW | 36.1 | 31.0 | 51.9 | 71.7 | |
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| 9 | CW | 36.4 | 28.9 | 29.8 | 39.9 |
| CCW | 41.6 | 49.4 | 46.9 | 64.3 | |
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| 10 | CW | 34.9 | 54.6 | 66.2 | 77.5 |
| CCW | 33.4 | 8.7 | 3.7 | 24.4 | |
CW: clockwise; CCW: counterclockwise; F1 – F3: fiducials 1 – 3.