Fig. 2: Performance of the LEP Model at the local patch level.
From: Emphysema progression risk in COPD using a localized foundational model of density evolution
The LEP model was evaluated on test subjects from the COPDGene cohort with high-dose CT scans from phase 1 to phase 2 (P1P2) and phase 2 to phase 3 (P2P3). We also evaluated the model robustness in 41 participants with low-dose CT scan from Phase 2 to Phase 3. ROC curves for the detection of local emphysema progression. Local emphysema progression was defined as more than 5% of the pixels within a local patch transitioning from tissue (CT density > -950 HU) to air (CT density <=-950 HU). LEP Local Emphysema progression, E Emphysema measured at baseline.
