Initial Experience Using Magseed for Breast Lesion Localization Compared With Wire-Guided Localization: Analysis of Volume and Margin Clearance Rates.

Magnetic seeds were successfully used for lesion localization in this cohort. Pathologic examination of specimens suggested that the surgeons were able to remove closer to optimal volumes of tissue than those using wire-guided intervention. Removal of less tissue did not result in higher rates of margin positivity or a need for re-intervention to achieve negative margin status. Magnetic seeds are a feasible and non-inferior approach that overcomes many drawbacks of other localization methods.