Slide 4 of 16
In the present study, it would be inappropriate to compare absolute measurements of parameters such as noise between scanners which are dissimilar in terms of geometry, filtration etc.
Instead, what we are looking at is the dose utilization in helical mode relative to axial mode. We want to see if this ratio is any better on multi-slice scanners than on single-slice scanners.
We also want to test out the validity of manufacturers’ recommendations for best use of their multi-slice systems, particularly in terms of pitch selection.