Motion-corrected supine breast MRI using a flexible coil vest and beat pilot tones – preliminary results

Motivation: This study addresses the challenge of motion artifacts in free-breathing supine breast MRI using a flexible RF coil, aiming to improve image quality and patient comfort. Goal(s): The primary goal is to demonstrate the feasibility of motion correction using beat pilot tones (BPT) in combination with the GRICS algorithm, requiring no additional on-patient hardware. Approach: A volunteer underwent supine breast MRI performing various breathing patterns, while BPT motion signals were extracted. The GRICS algorithm was used for retrospective motion correction. Results: Motion artifacts were effectively reduced for flat abdominal and normal thoracic breathing. However, heavy thoracic breathing artifacts were insufficiently reduced. Impact: Motion-corrected supine breast MRI with a flexible coil promises improved diagnostic image quality and increased patient comfort. Further optimization of acquisition and motion-correction techniques for clinical supine breast MRI will ultimately aid in early disease detection and management.