Table 2:

Histogram parameters of the follow-up MRIa

Pseudoprogression (n = 24)Progression (n = 11)P Value
ADCb
    Mean1402.4 ± 187.71345.5 ± 204.5.546
    SD404.0 ± 85.3402.1 ± 110.1.804
    Max freq0.14 ± 0.050.16 ± 0.05.241
    Mode1245.8 ± 178.11222.7 ± 331.9.430
    Kurtosis4.96 ± 2.314.64 ± 2.00.776
    Skewness1.09 ± 0.621.05 ± 0.69.915
rCBV
    Mean1.40 ± 0.422.15 ± 0.51<.001
    SD1.01 ± 0.401.50 ± 0.38.001
    Max freq0.30 ± 0.100.17 ± 0.05<.001
    Mode0.80 ± 0.260.96 ± 0.52.522
    Kurtosis9.68 ± 4.116.49 ± 3.02.030
    Skewness2.05 ± 0.651.54 ± 0.63.039
  • Note:—Max freq indicates maximum relative frequency.

  • a Numbers represent means.

  • b Unit of ADC value = 10−6mm2/s.