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 …

Artificial intelligence for neuro MRI acquisition: a review

H Yang, G Wang, Z Li, H Li, J Zheng, Y Hu… - … Resonance Materials in …, 2024 - Springer
Object To review recent advances of artificial intelligence (AI) in enhancing the efficiency
and throughput of the MRI acquisition workflow in neuroimaging, including planning …

Calibration‐free pTx of the human heart at 7T via 3D universal pulses

CS Aigner, S Dietrich, T Schaeffter… - Magnetic resonance in …, 2022 - Wiley Online Library
Purpose MRI at ultra‐high fields in the human body is highly challenging and requires
lengthy calibration times to compensate for spatially heterogeneous profiles. This study …

3D free‐breathing multichannel absolute mapping in the human body at 7T

S Dietrich, CS Aigner, C Kolbitsch… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose To introduce and investigate a method for free‐breathing three‐dimensional (3D)
mapping of the human body at ultrahigh field (UHF), which can be used to generate …

Rapid estimation of 2D relative B 1+‐maps from localizers in the human heart at 7T using deep learning

F Krueger, CS Aigner, K Hammernik… - Magnetic …, 2023 - Wiley Online Library
Purpose Subject‐tailored parallel transmission pulses for ultra‐high fields body applications
are typically calculated based on subject‐specific B 1+ B _1^+‐maps of all transmit …

Physics‐guided self‐supervised learning: Demonstration for generalized RF pulse design

A Jang, X He, F Liu - Magnetic Resonance in Medicine, 2025 - Wiley Online Library
Purpose To introduce a new method for generalized RF pulse design using physics‐guided
self‐supervised learning (GPS), which uses the Bloch equations as the guiding physics …

SmartPulse, a machine learning approach for calibration‐free dynamic RF shimming: preliminary study in a clinical environment

R Tomi‐Tricot, V Gras, B Thirion… - Magnetic resonance …, 2019 - Wiley Online Library
Purpose A calibration‐free pulse design method is introduced to alleviate artifacts in clinical
routine with parallel transmission at high field, dealing with significant inter‐subject …

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 …

[HTML][HTML] B1 field map synthesis with generative deep learning used in the design of parallel-transmit RF pulses for ultra-high field MRI

B Eberhardt, BA Poser, NJ Shah, J Felder - Zeitschrift für Medizinische …, 2022 - Elsevier
Spoke trajectory parallel transmit (pTX) excitation in ultra-high field MRI enables B 1+
inhomogeneities arising from the shortened RF wavelength in biological tissue to be …

DeepControl: 2DRF pulses facilitating inhomogeneity and B0 off‐resonance compensation in vivo at 7 T

MS Vinding, CS Aigner, S Schmitter… - Magnetic Resonance in …, 2021 - Wiley Online Library
Purpose Rapid 2DRF pulse design with subject‐specific inhomogeneity and B0 off‐
resonance compensation at 7 T predicted from convolutional neural networks is presented …