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 …

Multi‐echo–based fat artifact correction for CEST MRI at 7 T

K Tkotz, A Liebert, LV Gast, P Zeiger… - Magnetic resonance …, 2024 - Wiley Online Library
Purpose CEST MRI is influenced by fat signal, which can reduce the apparent CEST
contrast or lead to pseudo‐CEST effects. Our goal was to develop a fat artifact correction …

Joint design of excitation k-space trajectory and RF pulse for small-tip 3D tailored excitation in MRI

S Hao, JA Fessler, DC Noll… - IEEE transactions on …, 2015 - ieeexplore.ieee.org
We propose a new method for the joint design of k-space trajectory and RF pulse in 3D
small-tip tailored excitation. Designing time-varying RF and gradient waveforms for a …

Clinically compatible subject‐specific dynamic parallel transmit pulse design for homogeneous fat saturation and water‐excitation at 7T: Proof‐of‐concept for CEST …

S Lévy, J Herrler, A Liebert, K Tkotz… - Magnetic …, 2023 - Wiley Online Library
Purpose To evaluate the benefits and challenges of dynamic parallel transmit (pTx) pulses
for fat saturation (FS) and water‐excitation (WE), in the context of CEST MRI. Methods …

Real-time 2D spatially selective MRI experiments: comparative analysis of optimal control design methods

II Maximov, MS Vinding, HY Desmond… - Journal of magnetic …, 2015 - Elsevier
There is an increasing need for development of advanced radio-frequency (RF) pulse
techniques in modern magnetic resonance imaging (MRI) systems driven by recent …

Fast online spectral-spatial pulse design for subject-specific fat saturation in cervical spine and foot imaging at 1.5 T

CK Eisen, P Liebig, J Herrler, D Ritter, S Lévy… - … Resonance Materials in …, 2024 - Springer
Objective To compensate subject-specific field inhomogeneities and enhance fat pre-
saturation with a fast online individual spectral-spatial (SPSP) single-channel pulse design …

Parallel transmit optimized 3D composite adiabatic spectral‐spatial pulse for spectroscopy

X He, EJ Auerbach, M Garwood… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose To develop a 3D composite adiabatic spectral‐spatial pulse for refocusing in spin‐
echo spectroscopy acquisitions and to compare its performance against standard …

Simultaneous fat saturation and magnetization transfer contrast imaging with steady‐state incoherent sequences

F Zhao, JF Nielsen, SD Swanson… - Magnetic resonance …, 2015 - Wiley Online Library
Purpose This work combines an n‐dimensional fat sat (uration) radiofrequency (RF) pulse
with steady‐state incoherent (SSI) pulse sequences, eg, spoiled gradient‐echo sequence, to …

Magnetic resonance data acquisition method and apparatus saturation with spin dependent on the anatomical structures to be imaged

J Pfeuffer, R Schneider - US Patent 10,317,492, 2019 - Google Patents
In a method, computer and magnetic resonance imaging system for determining a control
sequence for operating the magnetic resonance imaging system to generate magnetic …

Topics in steady-state MRI sequences and RF pulse optimization

H Sun - 2015 - search.proquest.com
Small-tip fast recovery (STFR) is a recently proposed rapid steady-state magnetic resonance
imaging (MRI) sequence that has the potential to be an alternative to the popular balanced …