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 …
Rapid brain MRI acquisition techniques at ultra‐high fields
Ultra‐high‐field MRI provides large increases in signal‐to‐noise ratio (SNR) as well as
enhancement of several contrast mechanisms in both structural and functional imaging …
enhancement of several contrast mechanisms in both structural and functional imaging …
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 …
DREAM—a novel approach for robust, ultrafast, multislice B1 mapping
K Nehrke, P Börnert - Magnetic resonance in medicine, 2012 - Wiley Online Library
A novel multislice B1‐mapping method dubbed dual refocusing echo acquisition mode is
proposed, able to cover the whole transmit coil volume in only one second, which is more …
proposed, able to cover the whole transmit coil volume in only one second, which is more …
kT‐points: Short three‐dimensional tailored RF pulses for flip‐angle homogenization over an extended volume
With Transmit SENSE, we demonstrate the feasibility of uniformly exciting a volume such as
the human brain at 7T through the use of an original minimalist transmit k‐space coverage …
the human brain at 7T through the use of an original minimalist transmit k‐space coverage …
Universal pulses: a new concept for calibration‐free parallel transmission
Purpose A calibration‐free parallel transmission method is investigated to mitigate the
radiofrequency (RF) field inhomogeneity problem in brain imaging at 7 Tesla (T). Theory and …
radiofrequency (RF) field inhomogeneity problem in brain imaging at 7 Tesla (T). Theory and …
Toward imaging the body at 10.5 tesla
Purpose To explore the potential of performing body imaging at 10.5 Tesla (T) compared
with 7.0 T through evaluating the transmit/receive performance of similarly configured dipole …
with 7.0 T through evaluating the transmit/receive performance of similarly configured dipole …
A specific absorption rate prediction concept for parallel transmission MR
I Graesslin, H Homann, S Biederer… - Magnetic resonance …, 2012 - Wiley Online Library
The specific absorption rate (SAR) is a limiting factor in high‐field MR. SAR estimation is
typically performed by numerical simulations using generic human body models. However …
typically performed by numerical simulations using generic human body models. However …
Slice‐selective RF pulses for in vivo B inhomogeneity mitigation at 7 tesla using parallel RF excitation with a 16‐element coil
K Setsompop, V Alagappan, B Gagoski… - … in Medicine: An …, 2008 - Wiley Online Library
Slice‐selective RF waveforms that mitigate severe B inhomogeneity at 7 Tesla using parallel
excitation were designed and validated in a water phantom and human studies on six …
excitation were designed and validated in a water phantom and human studies on six …
Fast online‐customized (FOCUS) parallel transmission pulses: a combination of universal pulses and individual optimization
J Herrler, P Liebig, R Gumbrecht… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose To mitigate spatial flip angle (FA) variations under strict specific absorption rate
(SAR) constraints for ultra‐high field MRI using a combination of universal parallel transmit …
(SAR) constraints for ultra‐high field MRI using a combination of universal parallel transmit …