In Vietnam, each year there are approximately 23,667 new cases and 20,170 deaths from lung cancer. Early detection of lung tumors, especially lung cancer, is particularly important. Lung CT scan is considered an effective method in identifying lung tumors.

Early stages of lung cancer are often difficult to detect on routine X-ray images, so patients miss the opportunity for early treatment. Therefore, low-dose lung CT scans are of great value in lung cancer screening, important in treatment and reducing mortality.