Across ten frozen 3D CT encoders, a finding's detectability is governed by its contrast and spatial extent, not the model choice, and small low-contrast lesions remain undetectable even with linear probing.
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Big, Bright, or Invisible: A Frozen-Feature Benchmark of 3D CT Foundation Models
Across ten frozen 3D CT encoders, a finding's detectability is governed by its contrast and spatial extent, not the model choice, and small low-contrast lesions remain undetectable even with linear probing.