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Fig. 4 | Insights into Imaging

Fig. 4

From: Development and validation of a four-dimensional registration technique for DCE breast MRI

Fig. 4

Impact on registration by motion category. Cases are grouped by motion category before registration. Dotted bars represent median motion on the NRS before registration. Blank bars indicate median change in motion after registration. A 95% confidence level is indicated. Registration resulted in a nonsignificant NRS change for cases initially assigned to categories 0 and 1 (p = 0.65). In DCE-MRI datasets of patients with initially impaired diagnostic quality due to motion (categories 2 and 3), a significant decrease in the NRS was demonstrated for each category after registration (median NRS change for motion category 2: − 3, IQR 1, p < 0.001; median NRS change for motion category 3: − 7, IQR 2, p < 0.001)

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