Table 5.
Scan-Rescan Reproducibility: Coefficient of Variation by Region of Interest
| Scan | Cortical GM | Cerebral WM | Ventricular CSF | Thalamus | Putamen | Caudate | Cerebellar GM | Cerebellar WM | Brainstem |
|---|---|---|---|---|---|---|---|---|---|
| C.V. | C.V. | C.V. | C.V. | C.V. | C.V. | C.V. | C.V. | C.V. | |
| FLAIR | 6% | 3% | 26% | 5% | 3% | 8% | 4% | 2% | 3% |
| MPRAGE (Fast ADNI) | 3% | 1% | 11% | 1% | 1% | 1% | 4% | 2% | 1% |
| DTI: Reference Image | 6% | 3% | 5% | 5% | 2% | 6% | 13% | 12% | 13% |
| DTI: Diffusion Weighted | 5% | 2% | 7% | 2% | 2% | 2% | 13% | 10% | 8% |
| DTI Geometric Reference | 7% | 6% | 7% | 7% | 3% | 9% | 7% | 5% | 6% |
| Resting State fMRI | 6% | 2% | 5% | 4% | 2% | 3% | 8% | 3% | 6% |
| B0 Magnitude (TE=8ms) | 11% | 19% | 22% | 15% | 30% | 95% | 7% | 2% | 2% |
| B0 Magnitude (TE=9ms) | 10% | 18% | 22% | 14% | 28% | 105% | 7% | 2% | 1% |
| B1 Magnitude | 10% | 13% | 6% | 6% | 9% | 10% | 2% | 2% | 2% |
| Arterial Spin Labeling (ASL) | 14% | 28% | 67% | 27% | 95% | 161% | 6% | 2% | 2% |
| VASO | 9% | 20% | 74% | 36% | 117% | 305% | 16% | 12% | 10% |
| qT1 (15°) | 2% | 1% | 1% | 2% | 1% | 2% | 11% | 9% | 5% |
| qT1 (60°) | 4% | 2% | 6% | 3% | 1% | 4% | 17% | 14% | 10% |
| qT2 (dual echo: 30 ms) | 14% | 22% | 24% | 18% | 28% | 72% | 6% | 5% | 4% |
| qT2 (dual echo: 80 ms) | 16% | 23% | 24% | 20% | 28% | 73% | 9% | 11% | 8% |
| MT: Reference | 11% | 17% | 20% | 14% | 32% | 99% | 8% | 3% | 2% |
| MT: 1.5 kHz | 13% | 19% | 23% | 20% | 33% | 79% | 9% | 6% | 5% |