Nonlinear association between standardized uptake value (SUV) index based on 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) and the new International Association for the Study of Lung Cancer (IASLC) grading of lung invasive non-mucinous adenocarcinoma - Feng, Jinbao; Hu, Mengyue; Shao, Xiaonan; Gao, Jianxiong; Sun, Yan; Zhu, Yaoting; Fan, Yuhao; Shi, Yunmei; Niu, Rong (Quantitative Imaging in Medicine and Surgery, 2026)