Patient selection
adenocarcinoma spectrum lesions, tumors
TUMORS, GROUP B
In this retrospective study, we obtained the medical records of patients who had undergone surgical resection at our hospital from 2019 to 2021 and whose nodules had been confirmed to be adenocarcinoma spectrum lesions. The cases met the following inclusion criteria: (1) the maximum diameter of the SSN in the largest slice in the CT scan was ≤ 10 mm; (2) the lesion was confirmed as AAH, AIS, MIA, or IAC via histopathology; (3) the preoperative CT scan had a slice thickness of ≤ 1.5 mm; (4) the interval between the preoperative CT scan and surgical resection was ≤ 1 month. The exclusion criteria for the study were: (1) confirmation of histopathological result by biopsy or bronchoscopy; (2) the patient had undergone other therapies for tumors, such as chemotherapy, radiotherapy, and targeted therapy. The cases were divided into two groups depending on histological invasiveness: Group A (AAH/AIS/MIA) and Group B (IAC). According to the ratio of cases in Group A and B, the cases were divided into two sets: 70% of cases were divided into the training set, and 30% of cases were divided into the test set.