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Abstract #1596

Multi-reader evaluation of real-time MRI of the actively moving wrist at 0.55 Tesla

Abhijit J Chaudhari1, Robert D Boutin2, Yongwan Lim3, Sophia Cui4, Robert M Szabo5, and Krishna S Nayak3
1Radiology, University of California Davis, Sacramento, CA, United States, 2Radiology, Stanford University, Palo Alto, CA, United States, 3University of Southern California, Los Angeles, CA, United States, 4Siemens Medical Solutions, Malvern, PA, United States, 5Orthopaedic Surgery, University of California Davis, Sacramento, CA, United States

Synopsis

Keywords: Joints, Skeletal, Real-time imaging; Wrist Kinematics; Dynamic imaging.We acquired real-time MRI of the actively moving wrist in humans utilizing a high-performance 0.55T system. Resulting images and associated static wrist scans were assessed by two expert readers blinded to acquisition parameters. Our results show that images acquired at a high temporal resolution of 12.6 ms per frame demonstrate minimal image degradation compared to images acquired at temporal resolution of 100 ms or higher, and enable improved characterization of wrist motion. These benefits support further studies to assess high-performance 0.55T systems for the evaluation of dynamic dysfunction of the wrist.

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Keywords