How would increasing the rotation time affect spatial resolution?

Increasing the rotation time in a CT scan affects the number of views taken for each slice. When the rotation time is extended, the scanner has more time to collect data from multiple angles around the patient. This increased data capture results in a greater number of angular views, which directly contributes to improved spatial resolution.

Spatial resolution refers to the ability of the imaging system to distinguish small structures that are close together. By obtaining more views, the CT system can better differentiate between closely spaced objects, enhancing the overall clarity and detail of the images produced. This makes it easier for radiologists to identify anatomical structures and any potential abnormalities.

While the other options touch on different aspects of CT imaging, they do not directly relate to the impact of rotation time on spatial resolution. For instance, increased patient dose and display field-of-view are more about patient safety and image area than the clarity and detail of the imagery, and distinguishing between parts with similar densities is a function of the technology rather than a direct outcome of rotation time adjustments.