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Abstract #4944

Correlation of 4D MRI and Motion Capture during Dynamic Wrist Movements

Mohammad Zarenia1, Samantha R. Schwartz2, Joshua M. Leonardis2, Alyssa J. Schnorenberg2, Volkan E. Arpinar1, Brooke A. Slavens2, and Kevin M. Koch1
1Radiology, Medical College of Wisconsin, Milwaukee, WI, United States, 2Department of Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI, United States

Synopsis

4D MRI and external motion capture systems were utilized to track unconstrained movement of wrist carpal bones. Using slab-to-volume registration of dynamic MRI to static MRI reference images, wrist kinematic profiles for 19 healthy subjects were computed and compared to gold-standard motion analysis metrics during ulnar/radial deviation and flexion/extension motions. The agreement of kinematic measures derived using the intrinsic (i.e. carpal bone volume) MRI-based approach and external (sensor-based) motion capture methods provided validation of the deployed MRI-based kinematic profiling methodology.

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Keywords