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

As pixel size decreases, contrast resolution is expected to improve. Smaller pixel sizes allow for higher image resolution and greater detail because they can capture finer variations in tissue density. This increased detail enhances the system's ability to differentiate between subtle differences in contrast, leading to a more precise representation of anatomical structures.

In imaging, contrast resolution refers to the ability to distinguish between different tissues that have similar densities. With smaller pixels, the technology can sample the image more finely, enabling better differentiation between different types of tissues. Consequently, as pixel size decreases, the system's capacity to detect variations in contrast increases, leading to an overall improvement in the quality of the images produced.

The idea that contrast resolution decreases is based on misconceptions regarding pixel size and image quality. In fact, with modern imaging technologies, advancements often enable better contrast resolution with smaller pixel dimensions.