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Abstract #4623

Real-Time Prospective Rigid-Body Motion Correction with the EndoScout Gradient-Based Tracking System

Andre Jan Willem van der Kouwe1,2, Barry Fetics3, Dmitry Polenur3, Abraham Roth3, Erez Nevo3

1Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA; 2Department of Radiology, Harvard Medical School, Brookline, MA, USA; 3Robin Medical Inc., Baltimore, MD, USA

Motion during MR acquisitions causes considerable wasted scan time and confounds clinical diagnosis. We present an integrated solution for tracking and correcting rigid body head motion in real-time using the EndoScout gradient-based tracking system and the Siemens 3T TIM Trio MR scanner. The EndoScout probe consists of six small coils, and its location and orientation in the switching fields can be determined by the voltages induced in the coils. By rigidly affixing the probe to an object, the location of the object can be tracked in real-time. We demonstrate that the system provides real-time prospective motion correction during MR imaging.