A Gradient-Based Approach for Breast DCE-MRI Analysis

Figure 8

Ill patient with a moderate parenchymal background (~60%) with a non-mass-like lesion in the upper outer quadrant of the right breast. (a) Representation of the entropy values of directional gradient images of each slice in each scan of the sequence. (b) Slice with the highest gradient in the temporal acquisition, , that is, second postcontrast time. The red circle locates the automatically identified lesion. (c) Synthetic images of mean and standard deviation.

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