Novel materials in magnetic resonance imaging: high permittivity ceramics, metamaterials, metasurfaces and artificial dielectrics
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 …
which can be:(i) placed around the body for in vivo imaging,(ii) be integrated into a …
7T: Physics, safety, and potential clinical applications
O Kraff, HH Quick - Journal of Magnetic Resonance Imaging, 2017 - Wiley Online Library
With more than 60 installed magnetic resonance imaging (MRI) systems worldwide
operating at a magnetic field strength of 7T or higher, ultrahigh‐field (UHF) MRI has been …
operating at a magnetic field strength of 7T or higher, ultrahigh‐field (UHF) MRI has been …
Reducing RF-induced heating near implanted leads through high-dielectric capacitive bleeding of current (CBLOC)
L Golestanirad, LM Angelone, J Kirsch… - IEEE transactions on …, 2019 - ieeexplore.ieee.org
Patients with implanted medical devices such as deep brain stimulation or spinal cord
stimulation are often unable to receive magnetic resonance imaging (MRI). This is because …
stimulation are often unable to receive magnetic resonance imaging (MRI). This is because …
Practical improvements in the design of high permittivity pads for dielectric shimming in neuroimaging at 7 T
Improvements are proposed for practical design and use of high permittivity materials in high
field neuroimaging in three different areas:(i) a simple formula to predict the permittivity of tri …
field neuroimaging in three different areas:(i) a simple formula to predict the permittivity of tri …
Improvements of transmit efficiency and receive sensitivity with ultrahigh dielectric constant (uHDC) ceramics at 1.5 T and 3 T
Purpose Incorporating high dielectric constant (HDC) materials into radiofrequency (RF)
coils has been shown to effectively improve RF coil performance at 7 and 3 T because of the …
coils has been shown to effectively improve RF coil performance at 7 and 3 T because of the …
[HTML][HTML] High permittivity ceramics improve the transmit field and receive efficiency of a commercial extremity coil at 1.5 Tesla
I Zivkovic, W Teeuwisse, A Slobozhanyuk… - Journal of Magnetic …, 2019 - Elsevier
Objective The purpose of this work is to investigate the use of ceramic materials (based on
BaTiO 3 with ZrO 2 and CeO 2-additives) with very high relative permittivity (ε r∼ 4500) to …
BaTiO 3 with ZrO 2 and CeO 2-additives) with very high relative permittivity (ε r∼ 4500) to …
Noninvasive glioblastoma testing: multimodal approach to monitoring and predicting treatment response
Glioblastoma is the most aggressive adult primary brain tumor which is incurable despite
intensive multimodal treatment. Inter‐and intratumoral heterogeneity poses one of the …
intensive multimodal treatment. Inter‐and intratumoral heterogeneity poses one of the …
Studying neurons and glia non-invasively via anomalous subdiffusion of intracellular metabolites
Cells in the central nervous system, neurons and glia, display a wide range of structural
features. Molecular diffusion properties in the intracellular space of these cells reflect this …
features. Molecular diffusion properties in the intracellular space of these cells reflect this …
High‐permittivity pad design tool for 7T neuroimaging and 3T body imaging
Purpose High‐permittivity materials in the form of flexible “dielectric pads” have proved very
useful for addressing RF inhomogeneities in high field MRI systems. Finding the optimal …
useful for addressing RF inhomogeneities in high field MRI systems. Finding the optimal …
Flexible metasurface for improving brain imaging at 7T
Purpose Ultra‐high field MRI offers unprecedented detail for noninvasive visualization of the
human brain. However, brain imaging is challenging at 7T due to the B 1+ _1^+ field …
human brain. However, brain imaging is challenging at 7T due to the B 1+ _1^+ field …