Figure 2 | Scientific Reports

Figure 2

From: Performance of abbreviated protocols versus unenhanced MRI in detecting occult breast lesions of mammography in patients with dense breasts

Figure 2

A 50-year-old female; an invasive ductal carcinoma was not found on mammography with the background of heterogeneously dense breasts. (1) Unenhanced (UE)-MRI including images of FS-T2WI (a), DWI (b), and ADC map (c). An irregular mass of 5 mm diameter in the left breast (arrow) was detected by FS-T2WI. In the DWI sequence, the mass presented hyperintensity with corresponding ADC value = 1.61 × 10–3 mm2/s. As the result of the ADC value was higher than the cutoff, one of the readers scored this lesion as benign, whereas the other one thought this mass was malignant, mainly due to the irregular shape. (2) Abbreviated protocol (AP)-MRI consisting of the maximum-intensity projection (MIP) (d) and first post-contrast subtracted (FAST) (e). The images showed an enhanced mass with a slightly lobulated margin on the left breast, which was classified as BI-RADS 4.

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