What ability is characterized by displaying fine details separately, measured in line pairs per cm?

The ability to display fine details separately in an image, measured in line pairs per centimeter, is known as spatial resolution. Spatial resolution refers to the smallest distinguishable object that can be resolved in an image, demonstrating how well the system can differentiate between closely spaced structures. In the context of computed tomography (CT) and other imaging modalities, higher spatial resolution indicates that the imaging system can depict finer detail, which is crucial for accurate diagnosis and interpretation.

This measurement in line pairs per centimeter quantifies spatial resolution by assessing how many pairs of lines (one black and one white) can be distinguished within one centimeter. The higher the value, the better the capacity of the imaging system to resolve fine details.

While image sharpness can affect the overall clarity of an image, it is not the specific measurement focused on the ability to separate fine details; instead, it may involve various factors including spatial resolution, contrast, and noise. Detail fidelity and visual acuity, while related to clarity and detail perception, pertain to different contexts and do not specifically measure the resolution capability in terms of line pairs.