Table 2.
Radiographic analysis (N=40)
| ALL | MBM | SBM | P | |
|---|---|---|---|---|
| N | N | |||
| Brain metastases | ||||
| ≤3 | 22(55.0%) | 10(76.9%) | 12(44.4%) | 0.090 |
| >3 | 18(45.0%) | 3(23.1%) | 15(55.6%) | |
| TS(median, mm) | 18.75 | 12.6 | 22.3 | 0.003* |
| PBES(median, mm) | 41 | 19 | 47.5 | 0.000* |
| PBEI(Range) | 1.04(0-7.17) | 0.24(0-1.75) | 1.50(0.269-7.17) | 0.001* |
| Hi+PH metastases | 2(5.0%) | 0 | 2(7.4%) | - |
N: Number of Patients; MBM: metachronous brain metastases; SBM: synchronous brain metastases; TS: size of the largest brain tumors; PBES: Peritumoral Brain Edema Sizes; PBEI: Peritumoral Brain Edema Index; Hi+PH metastases: Hippocampus and Peri-Hippocampus region metastases. Asterisk (*) shows a significant difference between MBM and SBM groups (P<0.05).