title: MR-guided vacuum-assisted breast biopsy: accuracy of targeting and success in sampling in a phantom model.
abstract: An 11-gauge MR-compatible system was designed for use in magnetic resonance vacuum-assisted breast biopsy. The system uses a detachable needle with minimal artifact to allow imaging after placement and before biopsy to confirm lesion location. A phantom study involving 16 biopsies of lesions smaller than 10 mm was conducted to assess the performance of this system. Fifteen (94%) of 16 biopsies resulted in successful lesion sampling. Eighty-five percent of all core samples contained specimen materials targeted lesion material. Further research to evaluate the efficiency, accuracy, and safety of this system in a patient population is recommended.
authors.affiliation: Department of Radiology, University of Washington Medical Center, Seattle, Wash, USA. lehman@seattlecca.org
authors.forename: Constance D
authors.initials: CD
authors.lastname: Lehman
authors.forename: Taro
authors.initials: T
authors.lastname: Aikawa
mesh_terms: D001707:Biopsy, Needle / Q000295:instrumentation / Q000379:methods*; D001940:Breast / Q000473:pathology*; D004867:Equipment Design; D006801:Humans; D008279:Magnetic Resonance Imaging; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D014618:Vacuum