Ace the Radiology Practice Test 2026 – X-ray Your Success!

The technique that utilizes ionizing radiation to generate images of the body's internal structures is the CT scan. CT scans, or computed tomography scans, employ X-rays to obtain cross-sectional images of the body. This process involves rotating an X-ray beam around the patient and capturing multiple images that a computer then synthesizes into detailed two-dimensional or three-dimensional representations of the internal anatomy.

In contrast, while X-rays also use ionizing radiation, they provide flat, two-dimensional pictures rather than the more complex imaging achieved through a CT scan. MRI (Magnetic Resonance Imaging) and ultrasound do not involve ionizing radiation; MRI uses powerful magnets and radio waves, while ultrasound relies on sound waves to create images. Thus, among the options provided, the CT scan is the most appropriate answer regarding the use of ionizing radiation in imaging.