Parallel transmission for ultrahigh field MRI
CM Deniz - Topics in Magnetic Resonance Imaging, 2019 - journals.lww.com
Magnetic resonance imaging (MRI) has been driven toward ultrahigh magnetic fields (UHF)
in order to benefit from correspondingly higher signal-to-noise ratio and spectral resolution …
in order to benefit from correspondingly higher signal-to-noise ratio and spectral resolution …
Physics for clinicians: Fluid‐attenuated inversion recovery (FLAIR) and double inversion recovery (DIR) Imaging
M Saranathan, PW Worters… - Journal of Magnetic …, 2017 - Wiley Online Library
A pedagogical review of fluid‐attenuated inversion recovery (FLAIR) and double inversion
recovery (DIR) imaging is conducted in this article. The basics of the two pulse sequences …
recovery (DIR) imaging is conducted in this article. The basics of the two pulse sequences …
[HTML][HTML] Homogeneous non-selective and slice-selective parallel-transmit excitations at 7 Tesla with universal pulses: A validation study on two commercial RF coils
Parallel transmission (pTx) technology, despite its great potential to mitigate the transmit
field inhomogeneity problem in magnetic resonance imaging at ultra-high field (UHF) …
field inhomogeneity problem in magnetic resonance imaging at ultra-high field (UHF) …
Three‐dimensional static and dynamic parallel transmission of the human heart at 7 T
CS Aigner, S Dietrich, S Schmitter - NMR in biomedicine, 2021 - Wiley Online Library
Three‐dimensional (3D) human heart imaging at ultra‐high fields is highly challenging due
to respiratory and cardiac motion‐induced artifacts as well as spatially heterogeneous …
to respiratory and cardiac motion‐induced artifacts as well as spatially heterogeneous …
Joint design of RF and gradient waveforms via auto-differentiation for 3D tailored excitation in MRI
This paper proposes a new method for joint design of radiofrequency (RF) and gradient
waveforms in Magnetic Resonance Imaging (MRI), and applies it to the design of 3D …
waveforms in Magnetic Resonance Imaging (MRI), and applies it to the design of 3D …
SigPy. RF: comprehensive open-source RF pulse design tools for reproducible research
We present SigPy. RF, an extensive set of open-source, Python-based tools for MRI RF
pulse design. This toolbox extends the SigPy Python software package and leverages …
pulse design. This toolbox extends the SigPy Python software package and leverages …
Bayesian optimization of gradient trajectory for parallel‐transmit pulse design
M Zhang, CT Rodgers - Magnetic Resonance in Medicine, 2024 - Wiley Online Library
Purpose Spoke pulses improve excitation homogeneity in parallel‐transmit MRI. We
propose an efficient global optimization algorithm, Bayesian optimization of gradient …
propose an efficient global optimization algorithm, Bayesian optimization of gradient …
Array‐compressed parallel transmit pulse design
Purpose To design array‐compressed parallel transmit radiofrequency (RF) pulses and
compare them to pulses designed with existing transmit array compression strategies …
compare them to pulses designed with existing transmit array compression strategies …
Joint design of kT-points trajectories and RF pulses under explicit SAR and power constraints in the large flip angle regime
Abstract In Magnetic Resonance Imaging at ultra-high field, k T-points radiofrequency pulses
combined with parallel transmission are a promising technique to mitigate the B1 field …
combined with parallel transmission are a promising technique to mitigate the B1 field …
Simultaneous optimization of radio frequency and gradient waveforms with exact Hessians and slew rate constraints applied to kT-points excitation
K Majewski - Journal of Magnetic Resonance, 2021 - Elsevier
We consider an excitation pulse with piecewise constant gradient trajectories and radio
frequency (RF) waveforms such that the solution of the Bloch equations without relaxation …
frequency (RF) waveforms such that the solution of the Bloch equations without relaxation …