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. 2012 Sep;33(8):1539–1545. doi: 10.3174/ajnr.A3012

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