Chest computed tomography is an advanced imaging method that uses X-rays with higher intensity than X-ray films to examine images of structures inside the chest. This is a method with many advantages and is gradually becoming a supporting tool in diagnosing, detecting and monitoring diseases in the chest, heart, lungs and mediastinum. In addition, doctors can prescribe contrast injection for chest CT scan when it is necessary to assess the absorption of abnormal structures, thereby making more accurate assessments.