Computed tomography (CT) scans are medical imaging tests that use X-rays to create detailed images of the body's internal structures. The scan produces cross-sectional images of the body, which are used to identify various conditions and diagnose diseases.

CT scans are widely used in diagnostic medicine due to their ability to create high-resolution images of the body. These images are helpful in diagnosing various conditions such as cancer, brain disorders, and cardiovascular diseases, among others.

CT scans are also used to monitor the progression of diseases and the effectiveness of treatments. They are a non-invasive way to gather information about the body, making them a valuable tool in medical diagnostics.