Clinical Research Directory

Inclusion Criteria High-Risk Individuals (n = 100) * No prior history of lung cancer * Meets one of the following high-risk definitions: * Current or former smoker (quit within the past 15 years), aged 55-74 years, with a smoking history of ≥30 pack-years; OR * Never-smoker aged 55-75 years with a first-degree family history of lung cancer * Able and willing to provide written informed consent Early-Stage Lung Cancer Patients (n = 20) * Aged ≥21 years * Histologically or clinically confirmed stage I-II lung cancer * Treatment-naïve (no prior surgery, chemotherapy, radiotherapy, or immunotherapy for lung cancer) * Able and willing to provide written informed consent Advanced-Stage Lung Cancer Patients (n = 20) * Aged ≥21 years * Histologically or clinically confirmed stage III-IV lung cancer * Treatment-naïve (no prior systemic or local therapy for lung cancer) * Able and willing to provide written informed consent Exclusion Criteria Applicable to All Participants * Pregnant or breastfeeding women * Inability or unwillingness to comply with study procedures High-Risk Individuals Only * Known allergy or contraindication to CT contrast agents * Prior low-dose CT (LDCT), CT thorax, or PET-CT performed within 12 months prior to enrollment Lung Cancer Cohorts Only • Receipt of any prior cancer-directed treatment for lung cancer