Computed Tomography records a predetermined plane in the body using an x-ray beam that is measured, recorded and processed by a computer for display.

Computed Tomography records a predetermined plane in the body using an x-ray beam that is measured, recorded and processed by a computer for display.

• A. Computed Tomography
• B. Radiography
• C. Nuclear Medicine
• D. MRI

Answer: (A)

CT records a predefined plane by using an X-ray beam that rotates around the patient, with detectors measuring the transmitted radiation from many angles. The data are then processed by a computer to reconstruct a cross-sectional image in the chosen plane (axial, coronal, or sagittal) for display. This approach distinguishes CT from plain radiography, which provides a single 2D projection image without computational reconstruction. Nuclear medicine relies on radiopharmaceuticals and functional imaging rather than X-ray transmission data, and MRI uses magnetic fields and radiofrequency to produce images rather than X-ray transmission.

CT records a predefined plane by using an X-ray beam that rotates around the patient, with detectors measuring the transmitted radiation from many angles. The data are then processed by a computer to reconstruct a cross-sectional image in the chosen plane (axial, coronal, or sagittal) for display. This approach distinguishes CT from plain radiography, which provides a single 2D projection image without computational reconstruction. Nuclear medicine relies on radiopharmaceuticals and functional imaging rather than X-ray transmission data, and MRI uses magnetic fields and radiofrequency to produce images rather than X-ray transmission.