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. 2021 Aug 24;301(2):295–308. doi: 10.1148/radiol.2021203645

Figure 4:

Axial maximum intensity projection of subtracted early contrast-enhanced phase MRI in right breast of a 47-year-old perimenopausal woman with left hormone receptor–positive human epidermal growth factor 2–negative invasive breast cancer at (A) T0 and (B) T2. The calculated background parenchymal enhancement (BPE) values were (A) 46.3% and (B) 15.9%, and the BPE change was evaluated as suppressed (percent change of BPE at T2, <0). The patient was confirmed at pathologic analysis as having complete response in the surgical specimen after neoadjuvant chemotherapy.

Axial maximum intensity projection of subtracted early contrast-enhanced phase MRI in right breast of a 47-year-old perimenopausal woman with left hormone receptor–positive human epidermal growth factor 2–negative invasive breast cancer at (A) T0 and (B) T2. The calculated background parenchymal enhancement (BPE) values were (A) 46.3% and (B) 15.9%, and the BPE change was evaluated as suppressed (percent change of BPE at T2, <0). The patient was confirmed at pathologic analysis as having complete response in the surgical specimen after neoadjuvant chemotherapy.