• Biomaterials · May 1996

    Appearance of low signal intensity lines in MRI of silicone breast implants.

    • P W Stroman, C Rolland, M Dufour, P Grondin, and R G Guidoin.
    • Québec Biomaterials Institute, St. Francois d'Assise Hospital, Canada.
    • Biomaterials. 1996 May 1;17(10):983-8.

    AbstractMagnetic resonance (MR) images of five explanted mammary prostheses were obtained with a 1.5 T GE Signa system using a conventional spin-echo pulse sequence, in order to investigate the low-intensity curvilinear lines which may be observed in MR images of silicone gel-filled breast implants under pressure from fibrous capsules. MR images showed ellipsoid prostheses, often containing multiple low-intensity curvilinear lines which in some cases presented an appearance very similar to that of the linguine sign. Upon opening the fibrous capsules, however, all of the prostheses were found to be completely intact demonstrating that the appearance of multiple low signal intensity curvilinear lines in MR images of silicone gel-filled prostheses is not necessarily a sign of prosthesis rupture. The MR image features which are specific to the linguine sign must be more precisely defined.

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