Magnetic Resonance Imaging Guided Vacuum Assisted and Core Needle Biopsies.
OBJECTIVE
The purpose of this study to present the results of Magnetic resonance imaging (MRI) guided cutting needle biopsy procedures of suspicious breast lesions that can be solely detected on Magnetic resonance (MR) examination.


METHODS
The study included 48 patients with 48 lesions which were solely be observed in breast MRI, indistinguishable in ultrasonography and mammography, for MR guided vacuum-assisted cutting needle biopsy and 42 patients with 42 lesions for MR guided cutting needle biopsy for the lesions of the same nature. MR imaging was performed using a 1.5-Tesla MRI device. Acquired MR images were determined and biopsy protocol was performed using computer-aided diagnosis system on the workstation. Vacuum biopsies were performed using 10 G or 12 G automatic biopsy systems, cutting needle biopsy procedures were performed using fully automated 12 G biopsy needle.


RESULTS
All biopsy procedures were finalized successfully without major complications. The lesions were 54 mass (60%), 28 were non-mass contrast enhancement (31%) and 8 were foci (9%) in the MR examination. Histopathological evaluation revealed 18 malignant (invasive, in-situ ductal carcinoma and lobular carcinoma), 66 benign (apocrine metaplasia, fibrosis, fibroadenomatoid lesion, sclerosing adenosis, fibrocystic disease and mild-to-severe epithelial proliferation) and 6 high-risk (atypical ductal hyperplasia, intraductal papilloma, radial scar) lesions.


CONCLUSIONS
Magnetic resonance guided vacuum and cutting needle biopsy methods are successful methods fort he evaluation of solely MRI detected suspicious breast lesions. There are several advantages relative to each other in both methods.
Department of Radiology, İstanbul University Faculty of Medicine, İstanbul, Turkey.
Fahrettin
F
Kılıç
Department of Radiology, İstanbul Medipol University, İstanbul, Turkey.
Abdulkadir
A
Eren
Clinic of Radiology, Memorial Hospital, Diyarbakır, Turkey.
Necmettin
N
Tunç
Department of General Surgery, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey.
Mehmet
M
Velidedeoğlu
Department of Radiology, İstanbul University Faculty of Medicine, İstanbul, Turkey.
Selim
S
Bakan
Department of General Surgery, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey.
Fatih
F
Aydoğan
Department of General Surgery, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey.
Varol
V
Çelik
Department of General Surgery, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey.
Ertuğrul
E
Gazioğlu
Department of Radiology, İstanbul University Faculty of Medicine, İstanbul, Turkey.
Mehmet Halit
MH
Yılmaz
Magnetic resonance imaging; breast neoplasm; image-guided biopsy; large core needle; vacuum