Predicting Lymph Node Metastasis in Part-Solid Lung Adenocarcinomas with a Maximum Solid Portion Diameter of 30.0 mm

< .001), along with better calibration (Brier score, 0.039 vs 0.044) and greater net benefit. The clinical actionable cutoff for solid portion diameter was 7.3 mm (sensitivity, 95.6%; specificity, 49.6%). Conclusion Solid portion diameter had a superior diagnostic performance compared with CTR in predicting LN metastasis in patients with part-solid lung adenocarcinomas of solid portion diameter of 30.0 mm or less at CT. © RSNA, 2026