16 citations · 47 across the 14 of their papers we have counts for
13 papers · 1 filter
A wearable, stretchable radio-frequency coil for extremity imaging in low-field MRI systems
Jesús Conejero, Marina Fernández-García, José Borreguero +10
Purpose: To develop a wearable, stretchable radio-frequency (RF) coil that conforms to the extremities and improves the filling factor in low-field MRI. Methods: A stretchable sole…
Comment on electromagnetic noise cancellation in low-field MRI systems (arXiv:2509.05955v1, 2406.17804v3, 2210.06730v2, and related works)
Joseba Alonso, José M. Algarín, 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. Algarín +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…
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…
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…
Subject grounding to reduce electromagnetic interference for MRI scanners operating in unshielded environments
Beatrice Lena, Bart de Vos, Teresa Guallart-Naval +6
Purpose. Portable low-field (< 0.1 T) MRI is increasingly used for point-of-care imaging, but electromagnetic interference (EMI) presents a significant challenge, especially in uns…
Electromagnetic Noise Characterization and Suppression in Low-Field MRI Systems
Teresa Guallart-Naval, José M. Algarín, 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…
ezyMRI: How to build an MRI machine from scratch -- Experience from a four-day hackathon
Shaoying Huang, José Miguel Algarín, Joseba Alonso +25
Nuclear magnetic resonance instruments are becoming available to the do-it-yourself community. The challenges encountered in the endeavor to build a magnetic resonance imaging inst…
Elliptical Halbach magnet and gradient modules for low-field portable MRI
Fernando Galve, Eduardo Pallás, Teresa Guallart-Naval +8
Objective. To develop methods to design the complete magnetic system for a truly portable MRI scanner for neurological and musculoskeletal (MSK) applications, optimized for field h…
MaRGA: a Graphical and Application Interface for MaRCoS
J. M. Algarín, T. Guallart-Naval, J. Borreguero +2
The open-source console MaRCoS, which stands for "Magnetic Resonance Control System", combines hardware, firmware and software elements for integral control of Magnetic Resonance I…
Portable MRI for major sporting events -- a case study on the MotoGP World Championship
J. M. Algarín, T. Guallart-Naval, E. Gastaldi-Orquín +11
The goal of this work is to showcase the clinical value that portable MRI can provide in crowded events and major sports competitions. We temporarily installed a low-field and low-…
Benchmarking the performance of a low-cost Magnetic Resonance Control System at multiple sites in the open MaRCoS community
T. Guallart-Naval, T. O'Reilly, J. M. Algarín +9
Purpose: To describe the current properties and capabilities of an open-source hardware and software package that is being developed by many sites internationally with the aim of p…
Portable magnetic resonance imaging of patients indoors, outdoors and at home
T. Guallart-Naval, J. M. Algarín, R. Pellicer-Guridi +15
Mobile medical imaging devices are invaluable for clinical diagnostic purposes both in and outside healthcare institutions. Among the various imaging modalities, only a few are rea…