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Table 2 Correlation between ME extent and the different variables

From: Determining optimal clinical target volume margins in high-grade glioma based on microscopic tumor extension and magnetic resonance imaging

Variables ME extent
r value* P value*
Pathologic grade  
 III/IV 0.668  < 0.001
Tumor volume 0.053 0.779
SVZ contact  
 No/Yes 0.384 0.036
Cortical involvement  
 No/Yes 0.370 0.044
PTBE volume 0.061 0.751
MGMT methylation status  
 Unmethylated/Methylated 0.417 0.022
IDH mutation status  
 Mutated/Wild type 0.448 0.013
1p/19q co-deletion status  
 Co-deleted/Non-co-deleted 0.372 0.043
  1. *r and P value according to the spearman’s rank correlation
  2. ME microscopic extension; SVZ subventricular zone; PTBE peritumoral brain edema; MGMT O6-methylguanine-DNA-methyltransferase; IDH isocitrate dehydrogenase; 1p/19q co-deletion the co-deletion of chromosome arms 1p and 19q