Which diagnostic procedure combines multiple X-rays and computer enhancement to create 3D images of internal structures?

The diagnostic procedure that combines multiple X-rays and computer enhancement to create 3D images of internal structures is indeed a CT scan, also known as computed tomography. This technique involves taking a series of X-ray images from different angles and using computer processing to create cross-sectional images (slices) of the body. These slices can then be compiled to form a detailed 3D representation of internal organs and structures.

CT scans provide greater detail than standard X-rays, making them particularly useful for diagnosing a variety of conditions, including tumors, internal injuries, and structural abnormalities. The ability to visualize complex anatomical details in three dimensions helps in planning surgeries or treatments.

In contrast, a PET scan involves the use of radioactive tracers and is primarily used to detect metabolic activity, which aids in the diagnosis of certain cancers and other conditions. MRI utilizes strong magnetic fields and radio waves to generate detailed images of soft tissues and is particularly effective for brain and spinal cord imaging. Endoscopy is a procedure that directly visualizes the inside of certain organs or cavities, using a flexible tube with a camera on the end, and is not reliant on X-rays or computer imaging technology.