Toward accessible MRI: SDR4MR, a simple RF pulse monitoring technique using an inexpensive software-defined radio

• DOI: 10.1007/s10334-025-01249-z
• Publication Date: 2025-04-19T14:04:11Z
• Authors: Kouame Ferdinand ...; Anita Paisant; Christophe Aube; Hervé Saint-Jalmes
• Keywords: Interface (matter); Echo (communications protocol); Sequence (biology); Pulse sequence

Abstract Objective This study evaluated the applicability and performance of SDR4MR method at 1.5 T 3 across different acquisition scenarios in a clinical environment. Materials methods The hardware consists broadband receiver coil connected to software-defined radio (SDR) via optional RF attenuators. SDR stick is plugged into computer's USB port, which runs software Mathematica script decode pulse sequence. Several MRI sequences were recorded: (i) multi-echo multi-slice spin echo sequence check configuration on well-known simple sequence; (ii) 2D 3D for detailed information not available user interface. Results measured have been drawn style illustrations found textbooks. Sequence times amplitudes estimated, details described interface retrieved. Conclusion present demonstrated implementation scanners. easy-to-use enables precise monitoring sequences. could be further improved by taking advantage advances software.