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Abstract #4075

Optical Transmission of Digitized MRI Signals Using Delta-Sigma Modulation

Mingdong Fan1, Xi Gao2, David Ariando2, Shinya Handa3, Labros Petropoulos3, Xiaoyu Yang3, Hiroyuki Fujita3, Michael Martens1, Robert Brown1, and Soumyajit Mandal2
1Physics, Case Western Reserve University, Cleveland, OH, United States, 2EECS, Case Western Reserve University, Cleveland, OH, United States, 3Quality Electrodynamics (QED), Mayfield Village, OH, United States

The electromagnetic interference between conductive cables is becoming an issue as the number of MRI receive channels increases. Optical fibers are seen as one of the potential alternatives. Analog optical links have been investigated due to their relatively simple RF coils structure and minimum modification to the MRI system, but they are often limited by the electrical and optical nonlinearities and degradation of noise figure. In this study, we propose a digital optical transmission system based on delta-sigma modulation (DSM) that aims to provide high dynamic range (DR) for MRI signal transmission.

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