Table 2.
Current state of reproducibility and availability for use in humans
| Quantitative MRI technique | Inter-scanner reproducibility | Hardware/software availability for clinical use |
|---|---|---|
| qT1 |
Moderate High (MP2RAGE) |
Limited |
| T2 relaxometry | Moderate | Limited |
| MWI | High (little evidence) | Limited |
| MTI | Low/moderate | Limited |
| DTI | Moderate | Broad |
| Models of diffusion-based microstructure | Moderate (little evidence) | Limited |
| QSM | High (little evidence) | Limited |
| Perfusion MRI (ASL, DSC, DCE) | High | Broad |
Reproducibility (inter-scanner and same field strength): high = <5% coefficient of variation (CV); moderate = 5–15% CV; low = > 15% CV in reported studies. ASL = arterial spin labelling; DCE = dynamic contrast-enhanced; DSCE = dynamic susceptibility contrast; MTI = magnetization transfer imaging; qT1 = quantitative T1.