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Objectives: A recent entry into the silicone gel-filled breast implant market from Motiva Implants (Establishment Labs Holdings Inc., NY, USA) contains a radio frequency identification device micro-transponder (RFID-M), known as the Q Inside Safety Technology, as an added safety feature embedded in the shell of its breast implant. This RFID-M device allows for the rapid unique identification of the implant. Concern for imaging voids due to the presence of the RFID device during MRI screening scans have arisen given its metallic components. Our investigation aims to determine whether the Q Inside Safety Technology RFID-M device in the Motiva Implants Limits the visualization of breast tissue in conventional breast imaging modalities. Methods: Seven patients with Motiva Implants were referred to dedicated diagnostic breast imaging centers for evaluation of their prostheses and surrounding breast parenchyma between January and May 2018. Imaging indications included routine evaluation of implant integrity, evaluation of significant breast symptoms, oncologic follow-up, and breast cancer screenings. Results: Under mammography, the Motiva Implants have a similar contour and mobility to other commonly used implants. The RFID-M is not visible and produces no artifact, allowing for proper visualization and screening of all visualized parenchymal tissues. Under ultrasound, the Motiva Implants are well-visualized in all patients. The RFID-M was not visible in vivo. No related ultrasound artifact was apparent within the lumen or behind the implant as shown in Figure 2(a). Five patients received MRI. The breast parenchyma and axillae were well-visualized in all 5 patients. The RFID-M was found to produce a “butterfly-shaped” susceptibility artifact that projects into the lumen of the breast implant and causes image distortion in some of the surrounding soft tissues and chest wall posterior to the implant. Conclusion: Aside from making its presence evident inside the implant, the Q Inside Safety Technology RFID-M does not interfere with the mammographic or sonographic exam, its results, or any consequent diagnosis made via their analysis. In the same respect using optimized MRI sequences to evaluate patients we were able to obtain satisfactory visualization of breast tissue in patients with the new Motiva Implants, and recommend using optimized study protocols for both early cancer detection and assessment of the implant’s integrity.

The Effects of Q Inside&lt;sup&gt;TM&lt;/sup&gt; Safety Technology Micro Transponder on Routine Breast Implant Imaging

The Effects of Q Inside<sup>TM</sup> Safety Technology Micro Transponder on Routine Breast Implant Imaging