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Table 1: Median values of MVA, MVD, and DCE- and DSC-MRI parameters with interquartile range for low and high-grade gliomas^{^a}
Low-Grade (n = 10) High-Grade (n = 33) P Value
MVA (%) 1.4 (0.66–2.09) 3.2 (1.82–9.38) .002
MVD (mm²) 129 (93–202) 376 (157–768) .006
Large-tumor Vp_Φ (%) 0.098 (0.01–0.58) 1.45 (0.71–2.21) .001
Large-tumor Vp_SI (%) 0.69 (0.27–2.20) 3.12 (1.37–6.72) .04
Large-tumor uCBV (a.u.) 35.8 (16.9–62.8) 80.8 (57.3–152.5) .01
Large-tumor rCBV 2.9 (1.53–4.19) 5.43 (3.19–8.21) .02
Large-tumor K^trans_Φ (min⁻¹) 0.00016 (0.00001–0.00225) 0.019 (0.011–0.041) .002
Large-tumor K^trans_SI (min⁻¹) 0.0012 (0.0004–0.0137) 0.05 (0.0118–0.0773) .004
Hot spot Vp_Φ (%) 0.46 (0.02–1.04) 2.93 (1.85–4.42) .0004
Hot spot Vp_SI (%) 1.84 (1.13–3.39) 8.51 (4.14–13.80) .015
Hot spot uCBV (a.u.) 40.2 (16.8–181.3) 163 (142–274) .002
Hot spot rCBV 2.85 (1.75–7.45) 11.6 (6.48–18.50) .008
Hot spot K^trans_Φ (min⁻¹) 0.00054 (0.00017–0.01341) 0.047 (0.023–0.091) .0006
Hot spot K^trans_SI (min⁻¹) 0.016 (0.002–0.067) 0.095 (0.044–0.162) .02
Note:—a.u. indicates arbitrary units.
↵a Interquartile ranges are in parentheses.