Table 2.
Mean ± s.d. of tumour ROI median values for estimated DWI parameters across the cohort. High variation in these values is expected to have a contribution from the variety of pathologies included within the repeatability study
| Intracranial | Extracranial | Full cohort | ||||
|---|---|---|---|---|---|---|
| Visit 1 | Visit 2 | Visit 1 | Visit 2 | Visit 1 | Visit 2 | |
| ADC100 (10−5 mm2 s−1) | 175.8 ± 45.8 | 174.7 ± 47.2 | 104.2 ± 21.1 | 106.4 ± 26.1 | 142.4 ± 51.0 | 142.8 ± 51.5 |
| f (%) | 11.6 ± 6.9 | 8.6 ± 6.5 | 7.9 ± 3.5 | 7.5 ± 2.2 | 9.9 ± 5.8 | 8.1 ± 4.9 |
| D (10−5 mm2 s−1) | 166.5 ± 45.7 | 167.3 ± 47.2 | 99.0 ± 23.6 | 100.7 ± 23.4 | 135.0 ± 50.0 | 136.2 ± 50.3 |
| D* (10−2 mm2 s−1) | 1.5 ± 1.1 | 1.5 ± 0.9 | 1.1 ± 0.6 | 0.9 ± 0.3 | 1.3 ± 0.9 | 1.2 ± 0.7 |
| fD* (10−4 mm2 s−1) | 23.7 ± 22.8 | 20.8 ± 22.1 | 8.1 ± 4.6 | 7.9 ± 3.5 | 16.4 ± 18.3 | 14.8 ± 17.1 |
| DDCα (10−5 mm2 s−1) | 191.6 ± 49.1 | 185.9 ± 43.8 | 105.9 ± 25.2 | 109.0 ± 28.9 | 151.6 ± 58.6 | 150.0 ± 53.8 |
| α | 0.9 ± 0.1 | 0.9 ± 0.1 | 0.9 ± 0.1 | 0.9 ± 0.0 | 0.9 ± 0.1 | 0.9 ± 0.1 |
| DDCK (10−5 mm2 s−1) | 225.8 ± 59.1 | 216.6 ± 46.5 | 123.3 ± 24.6 | 119.8 ± 17.1 | 178.0 ± 69.4 | 171.4 ± 60.9 |
| Kurtosis (mm4 s−2) | 1.1 ± 0.5 | 1.1 ± 0.6 | 1.4 ± 0.8 | 1.5 ± 0.6 | 1.3 ± 0.7 | 1.3 ± 0.7 |