Making the invisible visible—ultrashort echo time magnetic resonance imaging: technical developments and applications
Magnetic resonance imaging (MRI) uses a large magnetic field and radio waves to generate
images of tissues in the body. Conventional MRI techniques have been developed to image …
images of tissues in the body. Conventional MRI techniques have been developed to image …
Parallel transmission for ultrahigh‐field imaging
The development of MRI systems operating at or above 7 T has provided researchers with a
new window into the human body, yielding improved imaging speed, resolution and signal …
new window into the human body, yielding improved imaging speed, resolution and signal …
Pushing the limits of in vivo diffusion MRI for the Human Connectome Project
K Setsompop, R Kimmlingen, E Eberlein, T Witzel… - Neuroimage, 2013 - Elsevier
Perhaps more than any other “-omics” endeavor, the accuracy and level of detail obtained
from mapping the major connection pathways in the living human brain with diffusion MRI …
from mapping the major connection pathways in the living human brain with diffusion MRI …
Quantitative conductivity and permittivity imaging of the human brain using electric properties tomography
The electric properties of human tissue can potentially be used as an additional diagnostic
parameter, eg, in tumor diagnosis. In the framework of radiofrequency safety, the electric …
parameter, eg, in tumor diagnosis. In the framework of radiofrequency safety, the electric …
7‐T MR—from research to clinical applications?
Over 20 000 MR systems are currently installed worldwide and, although the majority
operate at magnetic fields of 1.5 T and below (ie about 70%), experience with 3‐T (in high …
operate at magnetic fields of 1.5 T and below (ie about 70%), experience with 3‐T (in high …
Robust and fast whole brain mapping of the RF transmit field B1 at 7T
A Lutti, J Stadler, O Josephs, C Windischberger… - PloS one, 2012 - journals.plos.org
In-vivo whole brain mapping of the radio frequency transmit field B1+ is a key aspect of
recent method developments in ultra high field MRI. We present an optimized method for fast …
recent method developments in ultra high field MRI. We present an optimized method for fast …
Convection-reaction equation based magnetic resonance electrical properties tomography (cr-MREPT)
Images of electrical conductivity and permittivity of tissues may be used for diagnostic
purposes as well as for estimating local specific absorption rate distributions. Magnetic …
purposes as well as for estimating local specific absorption rate distributions. Magnetic …
Ultra-high field MRI: parallel-transmit arrays and RF pulse design
SN Williams, P McElhinney… - Physics in Medicine & …, 2023 - iopscience.iop.org
This paper reviews the field of multiple or parallel radiofrequency (RF) transmission for
magnetic resonance imaging (MRI). Currently the use of ultra-high field (UHF) MRI at 7 tesla …
magnetic resonance imaging (MRI). Currently the use of ultra-high field (UHF) MRI at 7 tesla …
Patient‐individual local SAR determination: in vivo measurements and numerical validation
Tissue heating during magnetic resonance measurements is a potential hazard at high‐field
MRI, and particularly, in the framework of parallel radiofrequency transmission. The heating …
MRI, and particularly, in the framework of parallel radiofrequency transmission. The heating …
Comparison of simulated parallel transmit body arrays at 3 T using excitation uniformity, global SAR, local SAR, and power efficiency metrics
Purpose We compare the performance of eight parallel transmit (pTx) body arrays with up to
32 channels and a standard birdcage design. Excitation uniformity, local specific absorption …
32 channels and a standard birdcage design. Excitation uniformity, local specific absorption …