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MedVL-CT69K
Findings
IC-469
CLIP's global contrastive alignment causes attention on anatomically irrelevant regions in 3D CT, yielding limited zero-shot diagnostic accuracy (AUC 68.4 on 54 tasks)
[eval]
IC-470
LOVT and MGCA, which use implicit cross-attention local alignment, show only marginal improvement over CLIP in 3D CT diagnosis (AUC 69.4 and 70.1 vs 68.4)
[eval]