STRESS TESTING SPATIAL ROUTING OF SYNTHESISED T1CE FOR MISSING-MODALITY BRAIN-TUMOUR SEGMENTATION USING TWO-DIMENSIONAL PROCEDURAL PHANTOMS
Apparent gains from adaptive fusion of synthesised contrast-enhanced T1-weighted (T1ce) MRI may reflect unequal label budgets, global calibration, or meta-model flexibility rather than genuinely spatial routing. We stress-tested this mechanism in two separately locked 16-seed studies using procedural phantoms and a 32-...