This study aims to explore the clinical features and CT imaging manifestations of spread through air spaces (STAS) in stage IA subsolid lung adenocarcinoma and to construct a predictive model based on machine learning algorithms.
We retrospectively analyzed patients with stage IA subsolid lung adenocarcinoma admitted to Xiangtan Central Hospital from January 2021 to June 2023. Patients were classified into STAS(+) and STAS(-) groups based on postoperative pathological results. We employed five machine learning algorithms—Logistic Regression, Support Vector Machine (SVM), K-Nearest Neighbour (KNN), Extreme Gradient Boosting (Xgboost), Least Absolute Shrinkage and Selection Operator (LASSO), and Random Forest (RF)—to develop a predictive model for STAS in stage IA subsolid lung adenocarcinoma.
Among the 106 patients with stage IA subsolid lung adenocarcinoma, 16 (15%) were diagnosed with STAS. After comparing the five machine learning algorithms, Xgboost demonstrated the highest diagnostic accuracy, achieving an area under the curve (AUC) of 0.969 (95% CI: 0.915-0.993). The Xgboost algorithm identified several key predictors of STAS in stage IA subsolid lung adenocarcinoma: higher proportion of solid component, CT value of the solid component, lesion size, degree of blurring in the surrounding ground-glass opacity (GGO) border, and volume of the solid component.
Through the analysis of clinical and imaging data, the Xgboost algorithm can effectively predict STAS in stage IA subsolid lung adenocarcinoma, providing valuable insights for clinical decision-making.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |