Which imaging modality is described as a computer-assisted series of X-ray slices through the body?

Which imaging modality is described as a computer-assisted series of X-ray slices through the body?

• A. CT Scan
• B. MRI
• C. Ultrasound
• D. X-ray

Answer: (A)

Computed tomography (CT) uses an X-ray beam and detectors that rotate around the body to capture many thin cross-sectional images, or slices. A computer then reconstructs these slices into detailed cross-sectional views that can be stacked into a 3D representation. This computer-assisted series of X-ray slices is what sets CT apart from a single plain X-ray image. MRI relies on magnetic fields and radio waves, not X-rays; ultrasound uses sound waves; a standard X-ray produces a single 2D projection.

Computed tomography (CT) uses an X-ray beam and detectors that rotate around the body to capture many thin cross-sectional images, or slices. A computer then reconstructs these slices into detailed cross-sectional views that can be stacked into a 3D representation. This computer-assisted series of X-ray slices is what sets CT apart from a single plain X-ray image. MRI relies on magnetic fields and radio waves, not X-rays; ultrasound uses sound waves; a standard X-ray produces a single 2D projection.