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Abstract #2955

Augmented Reality Visualization Using Image-Overlay for MR-Guided Interventions: Shoulder and Hip Arthrography in Cadavers at 1.5 Tesla

Jan Fritz1, Paweena U-Thainual2, 3, Tamas Ungi4, Aaron J. Flammang5, Gabor Fichtinger4, Iulian I. Iordachita2, John A. Carrino1

1Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University, Baltimore, MD, United States; 2Department of Mechanical Engineering and Laboratory for Computational Sensing and Robotics, The Johns Hopkins University, Baltimore, MD, United States; 3Department of Mechanical and Materials Engineering, Queen's University, Kingston, ON, Canada; 4School of Computing, Queens University, Kingston, ON, Canada; 5Center for Applied Medical Imaging, Siemens Corporate Research, Princeton, NJ, United States

Augmented reality navigated interventional magnetic resonance (MR) imaging can help to overcome a fundamental limitation of MR arthrography, namely the spatial separation of the two interdependent procedures of intra-articular injection of a Gadolinium-based contrast agent and diagnostic MR imaging of the respective joint. Our study shows that the novel augmented reality Image-Overlay System provides accurate and reproducible MR imaging guidance for successful shoulder and hip arthrography in human cadavers, supporting further evaluation with clinical trials.

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Keywords

accurate adjustment adjustments agent applied arthrogram articular assessed augmented background cadavers clinical computational computing confirm conjunction considered contrast control corporate corrected diagnostic engineering error evaluation executed final finally five forty fritz fundamental gadolinium guidance guided help human hypothesis included injection injections interdependent interventions intra john johns joint joints laboratory limitation location materials mechanical medical module monitor namely navigated navigation needle needles novel operator operators overcome overlay participated path paths performance placed planned planning positions procedures prospectively prostheses prototype puncture queen radiological radiology reality reproducible resolution respective respectively robotics school science sensing separation seven shoulder slicer software spatial statistically subjects successful supporting system target technical trials visualization visualize whereas