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A chest computed tomography (CT scan) primarily provides detailed, computer-generated images of the chest that are sliced into thin sections, allowing for a comprehensive view from front to back. This advanced imaging technique utilizes X-rays and a computer to create cross-sectional images, which can reveal structures within the chest, such as the lungs, heart, blood vessels, and bones, more clearly and in greater detail than traditional imaging methods.

This capability is crucial for diagnosing various conditions, including tumors, infections, and other pathologies that might not be visible on standard two-dimensional X-ray imaging. By using a series of X-ray measurements taken from different angles and reconstructing them into a comprehensive 3D representation, a CT scan provides information that can be vital for medical evaluation and treatment planning.