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Ablation results (mean ± SD).
| Configuration | ET Dice (%) | Temporal Variance (TV) |
|---|---|---|
| Baseline CNN backbone | 85.9 ± 3.0 | 0.152 ± 0.021 |
| + Temporal memory (PATM) | 87.2 ± 2.6 | 0.112 ± 0.017 |
| + Structural alignment (CTSAM) | 87.6 ± 2.4 | 0.103 ± 0.015 |
| + Boundary encoder (BETE) (Full PGSMT) | 88.1 ± 2.1 | 0.089 ± 0.012 |
