What technology does a CT scan utilize to produce cross-sectional views?

A CT scan, or computed tomography scan, uses multiple X-rays in a tube to create cross-sectional images of the body. This technology involves the rotation of an X-ray tube around the patient, capturing numerous images from different angles. These images are then processed by a computer to construct detailed cross-sectional views, or slices, of internal organs, tissues, and structures.

The nature of this scanning technique allows for the visualization of areas that would be difficult to assess using traditional X-rays, which typically provide only a two-dimensional view. By employing X-rays from various angles and combining the resulting data, a CT scan generates comprehensive, three-dimensional images that are crucial for accurate diagnosis and treatment planning in medical settings.

Other options involve different imaging technologies: ultrasound waves utilize high-frequency sound waves, magnetic fields are a key feature of MRI scans, and radiowaves are used in certain imaging procedures but not in CT scans. Thus, the distinct use of X-rays in a tube for CT scans makes it the correct choice.