Very low field magnetic resonance imaging with spintronic sensors

Quentin Herreros (1) , Hadrien Dyvorne (2, 1) , Paolo Campiglio (1) , Amala Demonti (1) , Guenaelle Jasmin-Lebras (1) , Myriam Pannetier-Lecoeur (1) , Claude Fermon (1)

1 LNO - Laboratoire Nano-Magnétisme et Oxydes
2 MSSM - Icahn School of Medicine at Mount Sinai [New York]

A very low field magnetic resonance imaging (MRI) setup based on magnetoresistive-superconducting mixed sensors is presented. A flux transformer is used to achieve coupling between the sample to image and the mixed sensor. The novel detector was implemented in a spin echo MRI experiment, exposing the mixed sensor to RF pulses without use of any RF switch. The performance of the novel detector is given in terms of signal-to-noise ratio and is compared with classical tuned coils.

Domains: Imaging

Quentin Herreros, Hadrien Dyvorne, Paolo Campiglio, Amala Demonti, Guenaelle Jasmin-Lebras, et al.. Very low field magnetic resonance imaging with spintronic sensors. Review of Scientific Instruments, 2013, ⟨10.1063/1.4821657⟩. ⟨cea-01231696⟩