Correlation Between Manual 2D ROI, MRI-Based, and Automated 3D VOI Semiquantitative Evaluations
| Evaluation | |||
|---|---|---|---|
| Parameter | Manual vs. automated (n = 80) | Manual vs. MRI-based (n = 40) | Automated vs. MRI-based (n = 40) |
| R2 | 0.934 | 0.842 | 0.871 |
| Constant ± SE | −0.120 ± 0.038 | −0.122 ± 0.107 | 0.083 ± 0.083 |
| Slope ± SE | 1.115 ± 0.034 | 1.228 ± 0.086 | 1.040 ± 0.065 |
| Limits of agreement | −0.12 to 0.12 | −0.19 to 0.19 | −0.18 to 0.18 |
| ICC | 0.966 | 0.916 | 0.932 |
R2, constant, and slope refer to a linear regression line. Limits of agreement (according to Bland and Altman (10)) and ICCs were calculated after correcting data for different slopes.