Closely Fitted 16-Channel Breast Array for MRI

Objective: We propose a 16-channel bilateral breast coil array prototype for high-resolution MR imaging at 3T. This coil aims to improve signal-to-noise ratio (SNR) by positioning the coil array close to the breast. Methods: Sixteen 80-mm coil elements made on flexible printed circuit boards were placed on top of a 3D-printed plastic housing modeled to fit most cup sizes. Match, tune, and detune elements were incorporated onto the coil. Phantom and in-vivo scans were performed to demonstrate the SNR profile and clinical efficacy of the coil. Conclusion: The in-vivo images show high sensitivity and coverage of the breast, and the SNR profile evaluated from the phantom images was relatively uniform throughout the imaging volume.