Fig. 3.

Plots of (A) G’, (B) G”, (C) |G*| and (D) phase angle φ from studies from five different groups. The black solid and red dotted horizontal lines correspond to the mean and mean ± 2 standard deviations (SDs) respectively after pooling all data for a particular tumor together. Note that ±2 SD's equal the 95% confidence interval. Abbreviations are: GBM=glioblastoma; AA=anaplastic astrocytoma; LGG=low grade glioma; Mening.=meningioma; Met=metastatic tumor; NAWM=normal appearing white matter.