title: Feasibility of MRI-guided large-core-needle biopsy of suspiscious breast lesions at 3 T.
abstract: The feasibility of large-core-needle magnetic resonance imaging (MRI)-guided breast biopsy at 3 T was assessed. Thirty-one suspicious breast lesions shown only by MRI were detected in 30 patients. Biopsy procedures were performed in a closed-bore 3-T clinical MR system on a dedicated phased-array breast coil with a commercially available add-on stereotactic biopsy device. Tissue sampling was technically successful in 29/31 (94%) lesions. Median lesion size (n = 29) was 9 mm. Histopathological analysis showed 19 benign lesions (66%) and one inconclusive biopsy result (3%). At follow-up of these lesions, 15 lesions showed no malignancy, no information was available in three patients and two lesions turned out to be malignant (one lesion at surgical excision 1 month after biopsy and one lesion at a second biopsy because of a more malignant enhancement curve at 12-months follow-up MRI). Nine biopsy results showed a malignant lesion (31%) which were all surgically removed. No complications occurred. MRI-guided biopsy at 3 T is a safe and effective method for breast biopsy in lesions that are occult on mammography and ultrasound. Follow-up MRI at 6 months after the biopsy should be performed in case of a benign biopsy result.
authors.affiliation: Department of Radiology, University Medical Center Utrecht, Heidelberglaan 100, E.01.132, 3584 CX, Utrecht, The Netherlands. n.peters@umcutrecht.nl
authors.forename: Nicky H G M
authors.initials: NH
authors.lastname: Peters
authors.forename: Carla
authors.initials: C
authors.lastname: Meeuwis
authors.forename: Chris J G
authors.initials: CJ
authors.lastname: Bakker
authors.forename: Willem P Th M
authors.initials: WP
authors.lastname: Mali
authors.forename: Arancha M
authors.initials: AM
authors.lastname: Fernandez-Gallardo
authors.forename: Richard
authors.initials: R
authors.lastname: van Hillegersberg
authors.forename: Marguerite E I
authors.initials: ME
authors.lastname: Schipper
authors.forename: Maurice A A J
authors.initials: MA
authors.lastname: van den Bosch
mesh_terms: D000328:Adult; D000368:Aged; D001707:Biopsy, Needle / Q000379:methods*; D001943:Breast Neoplasms / Q000473:pathology*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted / Q000379:methods*