### Acknowledgements

We would like to acknowledge Pavel Demin for his Red Pitaya development environment.

### References

1. P. P. Stang, et al, "Medusa: a Scalable MR Console Using USB," IEEE Trans. Med. Imag., vol. 31, pp. 370-379, 2012.
2. W. Tang, et al, “A home-built digital optical MRI console using high-speed serial links,” Magn. Reson. Med., vol. 74, pp. 578-588, 2015.
3. M. Tsuda, et al, "Development of Digital MRI Consoles Using General-Purpose Digital Instruments and Microcontroller Boards," Appl. Magn. Reson., vol. 47, pp. 847-858, 2016.
4. C. J. Hasselwander, Z. Cao, & W.A. Grissom, “gr-MRI: A software package for magnetic resonance imaging using software defined radios”, J. Magn. Reson., 270, 47-55.
5. https://tabletop.martinos.org/

### Figures

Figure 1. Diagram of the console with the Red Pitaya, using an MIT/Martinos Tabletop scanner5. The Red Pitaya outputs RF excitations and SPI waveforms to the T/R switch and gradient coils, respectively, after amplification. Received data from the Tabletop is transmitted back to the Red Pitaya, then sent to a client via a 1Gb/s TCP Ethernet socket to be displayed.

Figure 2. A spin echo, captured on the client on the data acquisition computer (TE = 5ms). The phantom was a 1cm diameter tube of water. The bottom graph shows the same data as the top graph, rescaled. The data is transmitted from the server to the client via a 1 Gb/s TCP Ethernet socket.

Figure 3. An image of a star phantom acquired on an MIT/Martinos Tabletop system (17.2 MHz) with the console via a 64-line spin echo sequence, TE = 5ms, TR = 3s, FOV = 1cm, no averages. The phantom is a 1cm-diameter tube containing water and a disk of ABS plastic with a star-shaped cutout.

Figure 4. 200 spin echoes acquired with the console, overlaid in time. The signal is very stable over time. Examining the real and imaginary components of the signal implies that the system has excellent phase stability.

Proc. Intl. Soc. Mag. Reson. Med. 26 (2018)
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