For ILC, MRI has better sensitivity of detection and correlation with tumor size at pathology than CBE, mammography, or ultrasound. However, 31% of cases are overestimated by MRI, and correlation remains only at 0.75. The select use of MRI for preoperative estimation of tumor size in ILC is supported by our data, but the need for improvement and refinement of imaging remains.
Whereas the majority of patients had image-detected breast cancer, a significant number of image-screened patients presented with palpable disease, which were more aggressive cancers. Until imaging techniques are refined, SBE and CBE remain important for breast cancer diagnosis.
Tomosynthesis-guided VAB is a feasible method to sample ADs that are occult at 2D mammography and ultrasound. Tomosynthesis-guided VAB is a minimally invasive method that detected a significant number of carcinomas, most of which were grade 1 cancers. Further studies are needed.
CEM provides low-energy 2D mammographic images analogous to digital mammography and contrast-enhanced recombined images that allow assessment of neovascularity similar to that offered by MRI. The utilization of CEM in the United States is currently low but could increase rapidly given the many potential indications for its clinical use.
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