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\title{Extending the MaRCoS: A 4-Rx Open-Source MRI Console for Low-, Mid-, and
High-Field Systems}



\author[1]{Hanlei Wang}%
\author[1]{Feiyang Lou}%
\author[1]{Yiman Huang}%
\author[1]{Yang Gao}%
\author[1]{Xiaotong Zhang}%
\affil[1]{Affiliation not available}%


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  \date{April 29, 2026}


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\begin{abstract}
The fast advancement of low-field MRI (magnetic resonance imaging) has
generated a high demand for cost-effective and versatile consoles for
MRI scanners. MaRCoS (MAgnetic Resonance COntrol System) is such an
open-source system that has been well-tested on various low-field
systems. However, due to limitations of the basic hardware, MaRCoS is
constrained in its ability to support a wide range of field strengths
and RF (radio-frequency) channels. In this study, we aim to port the
MaRCoS console to high-field MRI systems and increase the number of RF
receive channels, enabling phased-array coils and/or active EMI
(electromagnetic interference) elimination techniques. A series of
implementations were conducted across 0.11-, 0.5-, and 1.5-Telsa MRI
systems, in order to evaluate its compatibility and performance.
Promising results indicate that the extended console not only matches
but, to some extent, surpasses the performance of a commercial
spectrometer, particularly in terms of flexibility and accessibility. It
is hoped that this study could effectively expand the scope of
open-source MRI technology, making MRI scans more accessible and
affordable.%
\end{abstract}%



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