Table 2.
Correlation between ME extent and the different variables
| 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 |
*r and P value according to the spearman’s rank correlation
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