Computed Tomography Technologist Practice Exam 2025 - Free CT Technologist Practice Questions and Study Guide

Injecting saline simultaneously with contrast can effectively reduce streaking artifacts. Streaking artifacts often occur due to the presence of high-density materials, which can create areas of darkness or light in computed tomography images. By adding saline at the same time as the contrast agent, it helps to dilute the contrast medium and mitigate the density differences that lead to streaking artifacts. This technique enhances image quality and provides clearer diagnostic information.

While motion artifacts occur due to patient movement during the scan, metal artifacts arise from the presence of metallic objects, and beam hardening artifacts are related to the acquisition of images through differing densities. These issues are addressed through different techniques, such as motion correction, metal artifact reduction algorithms, or using calibration techniques for beam hardening, rather than through the simultaneous injection of saline and contrast.