High resolution CINE imaging of guided knee motion using golden-angle radial MRI and a novel knee loading device
Martin A Aleksiev1, Martin Krämer2, Nicholas M Brisson3, Marta B Maggioni1, Georg N Duda3, and Jürgen R Reichenbach1
1Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany, 2Institute of Diagnostic and Interventional Radiology, Jena University Hospital - Friedrich Schiller University Jena, Jena, Germany, 3Julius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
An MRI-safe device guiding knee motion/loading with a rotary encoder was used during MRI measurements of multiple knee flexion-extension cycles using radial gradient echo imaging with the golden-angle as a radial increment. Reproducibility of knee motion was investigated and anatomical CINE images were reconstructed for different knee angles by synchronizing the encoder data with the MRI data and selective gating, enabling evaluation of musculoskeletal conditions.
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