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Abstract #0461

Motion monitoring using MR-compatible ultrasound-based sensors

Bruno Madore1, Frank Preiswerk1, Jeremy Bredfeldt1, Shenyan Zong1, and Cheng-Chieh Cheng1
1Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States

The purpose of this work is to develop MR-compatible sensors that can attach to the patient’s skin, to monitor breathing in a comprehensive manner. In contrast, alternatives such as MRI navigator echoes and optical tracking are typically rigidly fixed to walls or floors and as such cannot accompany a given patient through serial diagnostic and/or therapeutic procedures. We show here that these sensors capture breathing motion in much of its complexity, as validated against MRI and optical tracking data. These sensors could be used to help combine information from different modalities in a manner that takes internal motion into account.

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