arXiv Computer Vision By Michael Gl\"ockler, Timo Ropinski

XGLASS: X-Ray, Gaze and Language Assisted Slice Sequencing for CT Volumes

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XGLASS is a method that transfers expertise from 2D X‑ray vision‑language models to 3D CT volumes by using disease‑conditioned importance maps derived from radiologist gaze on X‑rays. By aligning these gaze priors with coronal CT projections, XGLASS predicts a disease‑specific ordering of axial slices, prioritizing diagnostically relevant slices. The approach achieves a top‑10 hit rate of up to 75.9% on a 240‑slice scan and reduces downstream model calls by 87.5% while improving F1 scores, making it a lightweight preselector for volumetric CT analysis.

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