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

Image Description

Question: 1 / 615

Which contrast phase is considered the worst for scanning?

The arterial phase

The delayed phase

The equilibrium phase

The equilibrium phase is considered the least favorable for scanning in computed tomography. During the equilibrium phase, the contrast material has diffused throughout the tissue and blood vessels, leading to a lack of significant difference in attenuation between the structures in the region being scanned. This results in lower contrast resolution, making it difficult to differentiate between normal and abnormal tissues.

In comparison, the arterial and venous phases are more beneficial for imaging, as they provide higher contrast between different types of tissues and vascular structures. The delayed phase can also be useful, particularly for evaluating lesions or abnormalities that require time to show changes in contrast enhancement. The equilibrium phase, however, misses the distinct imaging benefits provided during these other phases, limiting its utility in diagnostic imaging.

Get further explanation with Examzify DeepDiveBeta

The venous phase

Next Question

Report this question

Download Computed Tomography Technologist Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy