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Abstract #2658

Blurring and Ghosting Effects Under Beats Formation  in Magnetic Resonance Imaging Under Source Vibration

Dhiraj Sinha1, Pranay Prateek2, Simon Lui2, and Shaoying Huang3

1Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, United States, 2Information Systems Technology and Design, Singapore University of Technology and Design, Singapore, Singapore, 3Engineering Product Development, Singapore University of Technology and Design, Singapore, Singapore

A key challenge of MRI is development of an accurate model of noise generation which are integral to generation of high-resolution images. Currently, motion induced noise is addressed at algorithmic level. Here, we present a novel physical model which incorporates the role of mechanical vibration of body parts in generation of additional frequency components in the emitted radio frequency spectrum around the precession frequency. The mathematical model was validated through a computational simulation which led to the discovery that beats generated as a result of mechanical vibrations of the source lead to ghosting and blurring effects.

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