What is a key characteristic of the equilibrium phase in CT?

The equilibrium phase in computed tomography (CT) is specifically characterized by the stability of contrast agent distribution within the vascular system and surrounding tissues. This phase occurs after the non-equilibrium phase, during which there is a rapid alteration in the concentration of the contrast material.

In the equilibrium phase, the distribution of contrast becomes uniform and stable, allowing for clearer imaging of the tissues and vascular structures. This characteristic is essential as it provides the optimal conditions for imaging procedures, ensuring that the diagnostic quality of the scans is maintained.

Understanding the relationship between the non-equilibrium and equilibrium phases helps technicians and radiologists plan their scanning strategies effectively to enhance image quality and diagnostic capabilities. Thus, recognizing that the equilibrium phase directly follows the non-equilibrium phase reflects an important aspect of contrast kinetics in CT imaging.