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  • Title: Prototype breast coil for MR-guided needle localization.
    Author: Heywang-Köbrunner SH, Huynh AT, Viehweg P, Hanke W, Requardt H, Paprosch I.
    Journal: J Comput Assist Tomogr; 1994; 18(6):876-81. PubMed ID: 7962793.
    Abstract:
    OBJECTIVE: Evaluation of breast lesions detected by MR alone is a problem: Preoperative MR-guided localization is difficult, since the breast is not accessible by a needle within the breast coil. Magnetic resonance-guided core biopsy and needle aspiration are impossible. Together with Siemens Erlangen, a prototype localization breast coil has been developed and tested. MATERIALS AND METHODS: The device consists of a circular polarized coil, which contains two plates for mediolateral breast compression. They are perforated with numerous holes and thus allow access to the breast from both sides. By means of bushings, which fit into the holes, sterile needle insertion in a horizontal path is possible. RESULTS: So far, precise needle insertion has been possible in 10 of 11 lesions, allowing exact needle insertion into 5 invasive carcinomas (1 MR-detected), 1 MR-detected additional focus, 2 in situ carcinomas (1 MR-detected), and 3 benign lesions. CONCLUSION: Our studies show that MR-guided needle localization is possible.
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