WITHDRAWN: SQUID-detected ultra-low field MRI

M Espy, A Matlashov, P Volegov - Journal of Magnetic Resonance, 2013 - Elsevier
MRI remains the premier method for non-invasive imaging of soft-tissue. Since the first
demonstration of ULF MRI the trend has been towards ever higher magnetic fields. This is …

Hybrid ultra‐low‐field MRI and magnetoencephalography system based on a commercial whole‐head neuromagnetometer

PT Vesanen, JO Nieminen… - Magnetic …, 2013 - Wiley Online Library
Ultra‐low‐field MRI uses microtesla fields for signal encoding and sensitive
superconducting quantum interference devices for signal detection. Similarly, modern …

[HTML][HTML] Magnetic-field modeling with surface currents. Part I. Physical and computational principles of bfieldtools

AJ Mäkinen, R Zetter, J Iivanainen… - Journal of Applied …, 2020 - pubs.aip.org
Surface currents provide a general way to model magnetic fields in source-free volumes. To
facilitate the use of surface currents in magneto-quasistatic problems, we have implemented …

Design of compact self-shielded uniform magnetic field coils based on multipole moment optimization

S Wang, J Lu, F Lu, N Xu, Y Qi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Uniform magnetic field coils (UMFCs) are essential for generating accurate magnetic fields
that meet a variety of application requirements. However, the magnetic fields generated by …

[BUCH][B] Ultra-low field nuclear magnetic resonance: a new MRI regime

R Kraus Jr, M Espy, P Magnelind, P Volegov - 2014 - books.google.com
This book is designed to introduce the reader to the field of NMR/MRI at very low magnetic
fields, from milli-Tesla to micro-Tesla, the ultra-low field (ULF) regime. The book is focused …

SQUID-based ultralow-field MRI of a hyperpolarized material using signal amplification by reversible exchange

SJ Lee, K Jeong, JH Shim, HJ Lee, S Min, H Chae… - Scientific Reports, 2019 - nature.com
The signal amplification by reversible exchange (SABRE) technique is a very promising
method for increasing magnetic resonance (MR) signals. SABRE can play a particularly …

Approximate expressions for the magnetic field created by circular coils inside a closed cylindrical shield of finite thickness and permeability

T Liu, A Schnabel, Z Sun, J Voigt, L Li - Journal of Magnetism and Magnetic …, 2020 - Elsevier
The common approach to create a uniform magnetic field in the μ T range is placing a coil
set inside a magnetic shield. One of the main obstacles to achieving the requested …

MRI of the human brain at 130 microtesla

B Inglis, K Buckenmaier, P SanGiorgio… - Proceedings of the …, 2013 - National Acad Sciences
We present in vivo images of the human brain acquired with an ultralow field MRI (ULFMRI)
system operating at a magnetic field B 0∼ 130 μT. The system features prepolarization of …

Progress toward a deployable SQUID-based ultra-low field MRI system for anatomical imaging

MA Espy, PE Magnelind, AN Matlashov… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
Magnetic resonance imaging (MRI) is the best method for non-invasive imaging of soft tissue
anatomy, saving countless lives each year. But conventional MRI relies on very high fixed …

[HTML][HTML] Demonstration of full tensor current density imaging using ultra-low field MRI

P Hömmen, JH Storm, N Höfner, R Körber - Magnetic resonance imaging, 2019 - Elsevier
Direct imaging of impressed dc currents inside the head can provide valuable conductivity
information, possibly improving electro-magnetic neuroimaging. Ultra-low field magnetic …