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Abstract #4237

Kinematic MRI Tracking of Wrist Carpal Bones

Mohammad Zarenia1, Volkan Emre Arpinar1, Andrew S. Nencka1, L. Tugan Muftuler2, and Kevin M. Koch1
1Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States, 2Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, United States

In this study, a methodology is developed for kinematic tracking and profiling of free-moving wrist carpal bones. The derived kinematic profiles consist of joint metrics computed and tracked during free wrist motion. Such metrics are hypothesized to be potentially valuable for diagnosis and management of joint dysfunction. Here, an advanced 4D MRI protocol is deployed to capture frames of unconstrained moving joints which are registered to a high-resolution fixed volume using a novel slab-to-volume boundary registration method. Using this registration approach on a sample subject-dataset, concept demonstrations of a selection of metrics describing scaphoid-lunate kinematic motion are presented.

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