When comparing a pitch of 1 to a pitch of 1.2, what differences can be expected? (Select two)

When comparing a pitch of 1 to a pitch of 1.2, a few key differences can be observed. A pitch of 1 means the table moves the same distance as the beam width for each rotation of the CT scanner. In contrast, a pitch of 1.2 indicates that the table moves slightly farther than the beam width during each rotation.

One expected difference with a pitch of 1.2 is a decrease in total scan time. This is due to the increased table movement per rotation, which allows for faster data acquisition. Essentially, a higher pitch means that the scanner can complete the scanning of the same volume of tissue in less time, as it is covering more distance per rotation.

Additionally, a pitch of 1.2 can lead to increased image noise. While the scan time is reduced, the increased pitch also means that there is less overlap of the x-ray beams during scanning. This can result in a lower amount of data captured, potentially leading to images with more noise and reduced clarity.

The choice reflecting an increased dose is not necessarily accurate since increasing pitch does not inherently result in a higher radiation dose; instead, it can often reduce the effective dose due to the shorter scan time and potentially reduced total exposure per volume