Known as CT or CAT scans, this test gives a more detailed picture than chest X-rays. CT scans can detect extremely small tumors and can give three-dimensional imaging of the tumor. CT scans can also help determine if the tumor has spread to lymph nodes surrounding the lungs.12
12. ACS. Tests for Non-Small Cell Lung Cancer. Available at: https://www.cancer.org/cancer/non-small-cell-lung-cancer/detection-diagnosis-staging/how-diagnosed.html. Accessed 2: May 2019.