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Abstract #5411

4D dynamic imaging of moving joints using 3D MPnRAGE MRI and sliding window reconstruction to visualize full joint anatomy in real-time motion.

J. M. Fairhurst1,2, G. M. Schulte Farina1,2, K. M. Pelkola1,2, and S. K. Warfield1,2
1Department of Radiology, Boston Childrens Hospital, Boston, MA, United States, 2Computational Radiology Laboratory, Boston Childrens Hospital, Boston, MA, United States

Synopsis

Keywords:

Motivation: Dynamic imaging offers critical insights for conditions impacting joint mobility, affecting individuals across all age groups from pediatrics to geriatrics.

Goal(s): This study aims to evaluate a new MRI technique to assess real-time joint motion using 3D T1-weighted MPnRAGE sequence to visualize the complete joint anatomy as it articulates in real-time.

Approach: We employed a novel 3D radial kooshball GRE sequence (MPnRAGE) combined with a sliding window algorithm developed at the Computational Radiology Laboratory at Boston Children’s Hospital, USA were used.

Results: The resulting 4D images effectively capture the entire joint anatomy across three planes in real time, revealing full ranges of motion.

Impact: The 3D MPnRAGE sequence with sliding window reconstruction provides a robust 4D dynamic MRI solution for evaluating joint anatomy and motion in real time.

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Keywords