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 …

A systematic literature review on applications of GAN-synthesized images for brain MRI

S Tavse, V Varadarajan, M Bachute, S Gite, K Kotecha - Future Internet, 2022 - mdpi.com
With the advances in brain imaging, magnetic resonance imaging (MRI) is evolving as a
popular radiological tool in clinical diagnosis. Deep learning (DL) methods can detect …

Electrical properties tomography: A methodological review

R Leijsen, W Brink, C van den Berg, A Webb, R Remis - Diagnostics, 2021 - mdpi.com
Electrical properties tomography (EPT) is an imaging method that uses a magnetic
resonance (MR) system to non-invasively determine the spatial distribution of the …

Machine learning-based prediction of MRI-induced power absorption in the tissue in patients with simplified deep brain stimulation lead models

J Vu, BT Nguyen, B Bhusal, J Baraboo… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Interaction of an active electronic implant such as a deep brain stimulation (DBS) system
and magnetic resonance imaging (MRI) radiofrequency (RF) fields can induce excessive …

Deep learning‐based local SAR prediction using B1 maps and structural MRI of the head for parallel transmission at 7 T

S Gokyar, C Zhao, SJ Ma… - Magnetic Resonance in …, 2023 - Wiley Online Library
Purpose To predict subject‐specific local specific absorption rate (SAR) distributions of the
human head for parallel transmission (pTx) systems at 7 T. Theory and methods …

Personalized local SAR prediction for parallel transmit neuroimaging at 7T from a single T1‐weighted dataset

WM Brink, S Yousefi, P Bhatnagar… - Magnetic resonance …, 2022 - Wiley Online Library
Purpose Parallel RF transmission (PTx) is one of the key technologies enabling high quality
imaging at ultra‐high fields (≥ 7T). Compliance with regulatory limits on the local specific …

Individualized SAR calculations using computer vision‐based MR segmentation and a fast electromagnetic solver

E Milshteyn, G Guryev… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose We propose a fast, patient‐specific workflow for on‐line specific absorption rate
(SAR) supervision. An individualized electromagnetic model is created while the subject is …

MRSaiFE: an AI-based approach towards the real-time prediction of specific absorption rate

S Gokyar, FJL Robb, W Kainz, A Chaudhari… - IEEE …, 2021 - ieeexplore.ieee.org
The purpose of this study is to investigate feasibility of estimating the specific absorption rate
(SAR) in MRI in real time. To this goal, SAR maps are predicted from 3T-and 7T-simulated …

Rigid motion‐resolved prediction using deep learning for real‐time parallel‐transmission pulse design

A Plumley, L Watkins, M Treder, P Liebig… - Magnetic resonance …, 2022 - Wiley Online Library
Purpose Tailored parallel‐transmit (pTx) pulses produce uniform excitation profiles at 7 T,
but are sensitive to head motion. A potential solution is real‐time pulse redesign. A deep …

Ultra-high-field MR in Prostate cancer: Feasibility and Potential

CJA Tenbergen, GJ Metzger… - … Resonance Materials in …, 2022 - Springer
Multiparametric MRI of the prostate at clinical magnetic field strengths (1.5/3 Tesla) has
emerged as a reliable noninvasive imaging modality for identifying clinically significant …