Integration of DCE-MRI and DW-MRI Quantitative Parameters for Breast Lesion Classification

Figure 6

Result of a simple algorithm for classifying benign and malignant lesions: the voxels within a lesion can be classified as benign or malignant using the best combination of features in the pixel-by-pixel analysis: a lesion is classified as malignant if it has a percentage of malignant voxels higher than 50%. Per each patient, the percentage of the correctly classified voxels within the ROI is reported: if this percentage is higher than 50% than the lesion will be correctly identified. It can be seen that using DCE alone (blue line) only 9 lesions have been incorrectly classified. Using only DW we have again 9 lesions misclassified, but they are different from the previous ones. Moreover, the combination of DCE and DW produces the same results as DCE only.