7 papers
Qualitative and quantitative hard-tissue MRI with portable Halbach scanners
Jose Borreguero, Luiz G. C. Santos, Lorena Vega Cid +14
Purpose: To demonstrate the feasibility of performing in-vivo imaging and quantitative relaxation mapping of soft and hard tissues using a low-cost, portable MRI scanner, and to es…
Comment on electromagnetic noise cancellation in low-field MRI systems (arXiv:2509.05955v1, 2406.17804v3, 2210.06730v2, and related works)
Joseba Alonso, José M. AlgarÃn, Teresa Guallart-Naval
In this Comment, we discuss recent approaches to electromagnetic interference (EMI) mitigation in low-field Magnetic Resonance Imaging (LF-MRI), as presented in arXiv preprints 250…
High-resolution ultra-low-field MRI with SNRAware denoising
Teresa Guallart-Naval, Hui Xue, José M. AlgarÃn +8
Ultra-low-field (ULF, <0.1 T) magnetic resonance imaging (MRI) systems offer advantages in cost, portability, and accessibility, but their current utility is still limited by low s…
A fully open-source framework for streaming and cloud-processing of low-field MRI data
T. Guallart-Naval, J. Stairs, J. M. AlgarÃn +14
Purpose: To present a fully open-source framework for quasi-real-time streaming and cloud-based processing of low-field (LF) MRI data, addressing the growing computational demands…
Electromagnetic Noise Characterization and Suppression in Low-Field MRI Systems
Teresa Guallart-Naval, José M. AlgarÃn, Joseba Alonso
Purpose: Low-field MRI systems operate at single MHz-range frequencies, where signal losses are primarily dominated by thermal noise from the radio-frequency (RF) receive coils. Ac…
In-vivo imaging with a low-cost MRI scanner and cloud data processing in low-resource settings
Teresa Guallart-Naval, Robert Asiimwe, Patricia Tusiime +16
Purpose: To demonstrate in-vivo imaging with a low-cost, low-field MRI scanner built and operated in Africa, and to show how systematic hardware and software improvements can mitig…