In which situation would you prefer using helical scanning over axial scanning?

The preference for using helical scanning over axial scanning is strongly tied to the speed of data acquisition. Helical scanning allows for the continuous movement of the patient through the scanner while the X-ray tube rotates around them. This technique results in faster data acquisition because the entire volume of the area being examined can be scanned in a single breath-hold instead of requiring multiple stops and starts as in axial scanning. This capability is particularly beneficial in situations where quick imaging is essential, such as in trauma cases or when capturing dynamic processes within the body, enabling clinicians to obtain necessary diagnostic information more rapidly.

In contrast, other choices do not align with the primary advantages of helical scanning. For example, while small structures can be scanned in both helical and axial methods, the primary advantage of helical scanning is not about the size of what is being scanned but rather the speed and efficiency it offers. Patient comfort can be more of a consideration in helical scanning due to the faster procedure, making it typically a better option when comfort is a priority. Additionally, image resolution, which may vary between scanning methods, is not inherently compromised with helical scanning; instead, it often remains comparable to or better than that of axial scanning under optimal conditions. Thus, the primary