Lung cancer screening is a form of medical imaging that is used to detect early signs of lung cancer in individuals who are at high risk for developing the disease. Screening typically involves low-dose computed tomography (CT) scans which can detect small nodules or abnormalities in the lungs that may be indicative of lung cancer. Early detection of lung cancer through screening can greatly increase the chances of successful treatment and improved survival rates. Screening is recommended for individuals between the ages of 55 and 80 who are current or former smokers with a significant smoking history. There are ongoing research efforts in lung cancer screening to improve detection methods, reduce false positives, and ultimately save more lives through early detection and treatment.