A computed tomography (CT) scan is a medical imaging technique that uses X-rays and advanced computer processing to create detailed cross-sectional images of the body. By rotating an X-ray tube and detectors around a patient, CT scans capture multiple angles, which are reconstructed into 3D visuals of bones, organs, blood vessels, and soft tissues.

This technology provides higher resolution and more precise diagnostic information than traditional X-rays, making it invaluable for detecting tumors, internal injuries, infections, and vascular conditions. CT scans are widely used in emergency settings for trauma assessment, cancer staging, and guiding surgical procedures. While generally safe, exposure to ionizing radiation requires careful consideration, especially for repeated scans.

Modern advancements, such as low-dose protocols, faster imaging speeds, and AI-enhanced image analysis, continue to improve accuracy and reduce risks. As a cornerstone of diagnostic medicine, CT scans balance clinical benefits with the need for patient safety and informed decision-making.