Novel materials in magnetic resonance imaging: high permittivity ceramics, metamaterials, metasurfaces and artificial dielectrics

A Webb, A Shchelokova, A Slobozhanyuk… - … Resonance Materials in …, 2022 - Springer
This article reviews recent developments in designing and testing new types of materials
which can be:(i) placed around the body for in vivo imaging,(ii) be integrated into a …

A review of parallel transmit arrays for ultra-high field MR imaging

CH Choi, A Webb, S Orzada… - IEEE Reviews in …, 2023 - ieeexplore.ieee.org
Parallel transmission (pTX) techniques are required to tackle a number of challenges, eg,
the inhomogeneous distribution of the transmit field and elevated specific absorption rate …

A digital twin for parallel liquid-state nuclear magnetic resonance spectroscopy

M He, D Faderl, N MacKinnon, YT Cheng… - Communications …, 2024 - nature.com
One approach to increasing nuclear magnetic resonance measurement sample throughput
is to implement multiple, independent detection sites. However, the presence of radio …

MRI compatibility study of an integrated PET/RF-coil prototype system at 3 T

MSH Akram, T Obata, M Suga, F Nishikido… - Journal of Magnetic …, 2017 - Elsevier
We have been working on the development of a PET insert for existing magnetic resonance
imaging (MRI) systems for simultaneous PET/MR imaging, which integrates radiofrequency …

The principles of magnetic resonance, and associated hardware

A Webb - 2016 - books.rsc.org
1.1 Introduction the diversity of magnetic resonance (Mr) experiments is enormous, ranging
from simple one-dimensional proton nuclear magnetic resonance (nMr) spectroscopy …

Investigation of the B1 field distribution and RF power deposition in a birdcage coil as functions of the number of coil legs at 4.7 T, 7.0 T, and 11.7 T

JH Seo, SD Han, KN Kim - Journal of the Korean Physical Society, 2015 - Springer
The proper design of birdcage (BC) coils plays a very important role in the acquisition of
highresolution magnetic resonance imaging (MRI) of small animals such as rodents. In this …

An adjustable-length dipole using forced-current excitation for 7T MR

J Cui, IE Dimitrov, S Cheshkov, M Gu… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
Ultrahigh field imaging of the body and the spine is challenging due to the large field-of-view
(FOV) required. It is especially difficult for RF transmission due to its requirement on both the …

[PDF][PDF] Towards micro-imaging with dissolution dynamic nuclear polarisation

AP Gaunt - 2018 - core.ac.uk
Nuclear magnetic resonance (NMR) of small samples and nuclei with a low gyromagnetic
ratio is intrinsically insensitive due to the received signal dependence on Boltzmann's …

Eight-Channel Head Array and Control System for Parallel Transmit/Receive Magnetic Resonance Imaging

K Moody - 2014 - oaktrust.library.tamu.edu
Interest in magnetic resonance imaging (MRI) at high fields strengths (3 Tesla and above) is
driven by the associated improvements in signal-to-noise ratio and spectral resolution. In …

Microstrip transmission line array RF coil, RF shield configuration and integrated apparatus of RF coil and radiation imaging device

MSH Akram, T Obata, T Yamaya - US Patent 10,942,235, 2021 - Google Patents
(3 T for example) to ultra high (7 T for example) magnetic field is provided. RF shielded
radiation detector modules are separately disposed in a form of full or partial ring shape. The …