Performed at one institution, Observational, Prospective, Prostheses, Neoplasia, Artifacts, Diagnostic procedure, MR, Breast
M. P. F. Ananias1, A. M. Munhoz1, L. F. Chala1, G. G. N. Mello1, A. G. T. D. S. FILHO1, H. F. B. D. CASTRO2, A. D. A. M. Filho1, T. C. D. M. Tucunduva1, R. Gemperli1; 1São Paulo/BR, 2SAO PAULO/BR
Introduced in 2011, the Motiva SmoothSilk® is the first generation of breast implants incorporating a surface topography engineered using a 3D inverted imprinting technology to create a surface with very low roughness to avoid tissue ingrowth and minimize bacterial adhesion . In addition, SmoothSilk implants use Q Inside Safety Technology™, a radio-frequency identification (RFID-M) device, located on the posterior inner surface of the implant. This identification system (micro transponder) is a passive device that emits an electronic serial number when scanned with a hand-held reader tuned to the same frequency and enables patients and doctors to obtain implant-specific data such as lot number, manufacturer, date of manufacture, as well as clinical patient information. [1,3]
Despite the clear benefits in terms of safety and traceability, this system is a metallic foreign body comprising an integrated circuit and a ferrite core, causing homogeneity and susceptibility artifacts of the local magnetic field in magnetic resonance imaging (MRI) that results in a potential impact on diagnostic imaging [7,8].
This issue is very important because MRI has become an important tool for high-risk screening, breast cancer staging, and post-treatment follow up . In addition, MRI is the gold standard to obtain information regarding implant such as integrity, displacement and, postoperative complications .
Although MRI can be performed safely in implants with an RFID-M device [1-3], there are few studies in the literature on imaging quality in breasts with RFID-M implants and the evaluation of the patterns of the image artifacts and their extension into the remaining breast tissue.
Given these limitations, we undertook this prospective study to quantitatively evaluate any MRI artifacts caused by the RFID-M device in the SmoothSilk silicone gel implants (SSI) and its potential impact on the quality of breast magnetic resonance imaging.