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This study examines radiomics models developed from 18F-FDG PET/CT images to more precisely assess diagnosis and disease course (prognosis) in patients with non-small cell lung cancer (NSCLC). It is designed for patients aged 18 and older who had a PET/CT scan before surgery, have a histopathologically confirmed NSCLC diagnosis, and have complete clinical data. It is a study with no assigned phase and is active but not currently recruiting.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion Criteria: * Age \>= 18 years. * Underwent standard whole-body 18F-FDG PET/CT scan within 30 days before surgery. * Histopathologically confirmed Non-Small Cell Lung Cancer (NSCLC) with clear histological subtyping and complete postoperative TNM staging. * Primary tumor SUVmax \> 2.5 and maximum diameter \> 1.0 cm on CT. * Complete clinical, pathological, and imaging data available. * (For Gene Sub-study) Known EGFR gene mutation status. * (For Prognosis Sub-study) Complete follow-up data available (minimum 12 months or until endpoint event). Exclusion Criteria: * History of other malignancies. * Received any anti-tumor treatment (chemotherapy, radiotherapy, targeted therapy, immunotherapy) prior to PET/CT. * Severe image artifacts or indistinct tumor boundaries affecting ROI delineation. * Missing key clinical or pathological data. * Baseline PET/CT evaluated recurrent or metastatic tumors instead of primary NSCLC. * Extremely short life expectancy due to severe comorbidities.