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Abstract #0346

Amplified Magnetic Resonance Imaging (aMRI)

Samantha J Holdsworth1, Wendy W Ni1, Greg Zaharchuk1, Michael E Moseley1, and Mahdi S Rahimi1

1Lucas Center for Imaging, Department of Radiology, Stanford University, Palo Alto, CA, United States

This work introduces a new visualization method called amplified Magnetic Resonance Imaging (aMRI), which uses Eulerian Video Magnification to amplify subtle spatial variations in cardiac-gated brain MRI scans and magnify brain motion. This approach reveals deformations of brain structures and displacements of arteries due to cardiac pulsatility, especially in the brainstem, cerebellum, and spinal cord. aMRI has the potential for widespread neuro- and non-neuro clinical application, because it can amplify and characterize barely perceptible motion, and allows visualization of biomechanical responses of tissues using the heartbeat as an endogenous mechanical driver.

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