Table 10.

External validation results on BraTS 2020.

Model	ET dice (%)	TC dice (%)	WT dice (%)
3D U-Net	81.5	85.2	89.0
Attention U-Net	82.8	86.4	90.1
nnU-Net	84.9	88.1	91.2
ConvLSTM-Longitudinal	83.7	87.0	90.6
UNETR	84.5	87.8	91.5
Swin-UNet	85.6	88.7	91.8
Static–Dynamic Transformer	85.9	88.9	92.0
Hybrid CNN–Transformer	86.2	89.0	92.0
PGSMT (Proposed)	87.0	89.6	92.5