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. 2018 Mar 15;45(4):1444–1458. doi: 10.1002/mp.12812

Figure 6.

Figure 6

Positional constancy plotted by the technique parameter isolated as a major variance contributor in Table 9: mAs for the DEQC body phantom for monoenergetic (upper left) and material density reconstructions (lower left); and mA for the DEQC head phantom for monoenergetic (upper right) and material density reconstructions (lower right). Positional constancy was measured as the difference between the peripheral and central soft tissue rod (see Fig. 1 for soft tissue insert positioning). Error bars represent standard deviation across 10 scanners and 13 weeks.