Figure 2
From: Conspicuity of breast lesions at different b values on diffusion-weighted imaging
DW images of lesions graded as 1, 2, 3, 4, and 5 point. DW images of lesions graded as 1, 2, 3, 4, and 5 point based on the appearance and signal strength of lesions compared with surrounding breast parenchyma. (a) Grade 1 with symmetric signal intensity of bilateral breast. (b) Hyperplasia lesion in left breast scored as 2 with regional distribution, indistinct margin and moderate signal. (c) Fibroadenoma in left breast (arrow) scored as 3 with circumscribed appearance, definite margin and moderate signal. Another hyperintensity lesion is a cyst, which was not included in the study. (d) Invasive ductal carcinoma in right breast scored as 4 with segmental distribution, indistinct margin and strong signal. (e) Invasive ductal carcinoma in right breast scored as 5 with circumscribed appearance, definite margin and strong signal.