Breast MRI-Directed Intervention: Localization, Biopsy, and Treatment

Since breast magnetic resonance imaging (MRI) can identify lesions not seen on other imaging methods, MRI-directed biopsy and localization is a necessary part of a breast MRI practice. A wide variety of MRI-compatible localization wires, localization markers, biopsy needles, and vacuum-assisted biopsy devices are available. The attributes of each device are described. Stereotactic guidance systems are now produced that will accommodate almost any current MRI system. Dedicated breast MRI systems with full integration of interventional capability are now available. The superior definition of lesion extent by MRI may allow the minimally invasive treatment of breast cancer in the future.