Research Article
Accuracy and Precision of Three-Dimensional Low Dose CT Compared to Standard RSA in Acetabular Cups: An Experimental Study
Table 1
Precision of 3D CT compared to standard RSA.
| | Standard RSA | 3D CT | | 2.45 SD | Mean | Min | Max | 2.45 SD | Mean | Min | Max |
| Uncemented cup | | | | | | | | | Translation (mm) | | | | | | | | | | 0.07 | 0.00 | −0.03 | 0.05 | 0.01 | 0.00 | 0.00 | 0.01 | | 0.05 | 0.02 | −0.02 | 0.04 | 0.04 | −0.01 | −0.04 | 0.00 | | 0.09 | 0.03 | −0.02 | 0.09 | 0.09 | −0.01 | −0.09 | 0.01 | Rotation (°) | | | | | | | | | | 0.22 | −0.05 | −0.15 | 0.12 | 0.10 | −0.01 | −0.10 | 0.01 | | 0.13 | 0.00 | −0.10 | 0.05 | 0.06 | −0.02 | −0.05 | 0.00 | | 0.08 | 0.00 | −0.03 | 0.05 | 0.21 | −0.07 | −0.21 | 0.01 | Cemented cup | | | | | | | | | Translation (mm) | | | | | | | | | | 0.08 | 0.00 | −0.04 | 0.05 | 0.04 | −0.01 | −0.03 | 0.00 | | 0.04 | 0.00 | −0.02 | 0.02 | 0.04 | −0.01 | −0.04 | 0.00 | | 0.09 | 0.00 | −0.05 | 0.05 | 0.06 | −0.02 | −0.06 | 0.00 | Rotation (°) | | | | | | | | | | 0.19 | −0.03 | −0.16 | 0.06 | 0.14 | −0.02 | −0.11 | 0.02 | | 0.32 | 0.02 | −0.17 | 0.14 | 0.29 | −0.14 | −0.24 | 0.02 | | 0.12 | 0.02 | −0.03 | 0.10 | 0.27 | −0.05 | −0.27 | 0.02 |
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