Fig. 5From: Benchmarking adult CT-dose levels to regional and national references using a dose-tracking software: a multicentre experienceDetection of differences in the scan length of CT-cervical spine studies between the scanners in hospital C. Box plot of the scan length used for CT of the cervical spine on the five CT systems. Adjusted p values compare CT1 versus CT2 and CT4 versus CT5, Kruskal-Wallis test with post-hoc Dunn test. Adjusted p values not shown on the graph are below 0.01Back to article page