Computed Tomography Technologist Practice Exam 2025 – All-in-One Guide for Exam Success!

Dose distribution is more uniform in computed tomography (CT) because the imaging process involves rotating the x-ray tube around the patient and acquiring data from multiple angles. This multifaceted approach allows for the generation of cross-sectional images, ensuring that the radiation dose is distributed more evenly throughout the area of interest.

In traditional x-ray imaging, the radiation is directed from a single angle, which can lead to varying levels of exposure across different tissues. Consequently, some areas may receive higher doses while others receive less, resulting in a non-uniform dose distribution.

The other options do not accurately address the reason for improved uniformity in dose distribution specifically related to CT technology. While factors such as the amount of radiation used in CT or the age of conventional machines may affect safety and imaging quality, they do not inherently explain why CT achieves a more uniform dose across the examined area. The key advantage of CT lies in its ability to gather data from various angles, leading to more consistent exposure throughout the scanned volume.