Table 3:
Median values of the maximal perfusion parameters and coefficient of variation for different grades of gliomas combining 2D and 3D acquisition methods
| No. | Ktrans_ϕ(min−1) (95% CI) | CV(%) | Ktrans_SI(min−1) (95% CI) | CV(%) | Vp_ϕ (mL/100 g) (95% CI) | CV(%) | Vp_SI (mL/100 g) (95% CI) | CV(%) | |
|---|---|---|---|---|---|---|---|---|---|
| Grade 2 | 9 | 0.0041 (0.00062–0.033) | 165 | 0.0024 (0.00050–0.10) | 224 | 0.64 (0.063–1.4) | 103 | 1.12 (0.18–4.9) | 155 |
| Grade 2 excluding biopsy | 6 | 0.0014 (0.00010–0.011) | 144 | 0.0016 (0.00011–0.014) | 156 | 0.15 (0.011–0.67) | 107 | 0.81 (0.032–4.3) | 133 |
| Grade 3 | 9 | 0.031 (0.011–0.15) | 122 | 0.0093 (0.0030–0.17) | 172 | 0.98 (0.34–2.2) | 92 | 3.7 (1.6–6.4) | 86 |
| Grade 3 excluding biopsy | 7 | 0.031 (0.0083–0.19) | 116 | 0.0093 (0.0017–0.29) | 169 | 0.79 (0.26–2.9) | 116 | 1.9 (1.0–8.6) | 103 |
| Grade 4 | 28 | 0.088 (0.069–0.11) | 48 | 0.15 (0.093–0.21) | 79 | 2.16 (1.8–3.1) | 71 | 9.4 (5.8–14) | 75 |