Summed Intraobserver Reproducibility of 3 Different Methods
| Method | Caudate nucleus | Putamen | Striatum | ICC |
|---|---|---|---|---|
| MD (BPND) | 10.2% ± 9.2% | 9.7% ± 5.4% | 7.0% ± 4.1% | 0.97 |
| MRD (BPND) | 14.2% ± 12.3% | 8.1% ± 7.5% | 5.7% ± 5.4%* | 0.98 |
| SVI (SBR) | 6.7% ± 6.0% | 0.98 |
↵* Calculated striatum = volume-weighted (caudate nucleus+ putamen).
ICC = intraclass correlation coefficient.
No statistically significant better intraobserver reproducibility was observed for any method (MD vs. MRD, MD vs. SVI, MRD vs. SVI; P > 0.1), and all performed equally for intraclass correlation coefficient (n = 16).