Breast MRI: State of the Art    Indications for breast MRI are consolidating; MRI for screening leads to earlier cancer detection in virtually all evaluated populations; in the hands of experienced teams, MRI allows for improvement of surgical practice, reducing the number of re-excisions while preventing unnecessary mastectomies; and MRI allows for patient selection for neoadjuvant chemotherapy and is the technique of choice to support modification of therapeutic agents and for presurgical assessment of residual tumor size to determine breast conservation surgery candidacy.   Ritse M. Mann, Nariya Cho, Linda Moy