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. Author manuscript; available in PMC: 2013 Sep 17.
Published in final edited form as: AJR Am J Roentgenol. 2012 Jan;198(1):233–239. doi: 10.2214/AJR.11.6910

Fig. 6.

Fig. 6

Coronal T1 fat-saturated enhanced MR image (A) showing a centrally necrotic 6.0 × 4.0 cm invasive ductal carcinoma in a 50-year-old African American woman with heterogeneously dense breasts. UST image after step 2–4 of the fusion process (B) highlights the extent of mass margins similar to MR, including both the exophytic nodular portion (white arrows) and central necrosis (black arrows), assuming slight position differences between scanning in water (UST) and air (MR). Note the dense parenchyma displayed as semi-transparent gray surrounding the red tumor but not obscuring it.