Results 41 to 50 of about 24,328 (188)

Introduction of ultra-high-field MR brain imaging in infants: vital parameters, temperature and comfort

NeuroImage: Reports, 2023
Background: Brain MRI in infants at ultra-high-field scanners might improve diagnostic quality, but safety should be evaluated first. In our previous study, we reported simulated specific absorption rates and acoustic noise data at 7 Tesla.
I.M. van Ooijen, K.V. Annink, M.J.N.L. Benders, J. Dudink, T. Alderliesten, F. Groenendaal, M.L. Tataranno, M.H. Lequin, J.M. Hoogduin, F. Visser, A.J.E. Raaijmakers, D.W.J. Klomp, E.C. Wiegers, J.P. Wijnen, N.E. van der Aa   +14 more
doaj   +1 more source

An artificial dielectric slab for ultra high-field MRI: Proof of concept

Journal of Magnetic Resonance, 2020
High-permittivity dielectric pads, i.e., thin, flexible slabs, usually consisting of mixed ceramic powders and liquids, have been previously shown to increase the magnetic field at high and ultra high-fields in regions of low efficiency of transmit coils, thus improving the homogeneity of images. However, their material parameters can change with time,
Vorobyev, V, Shchelokova, A, Zivkovic, I, Slobozhanyuk, A, Baena, JD, Del Risco, JP, Abdeddaim, R, Webb, A, Glybovski, S   +8 more
openaire   +6 more sources

SUITer: An automated method for improving segmentation of infratentorial structures at ultra‐high‐field MRI

, 2020
BACKGROUND AND PURPOSE: The advent of high and ultra-high-field MRI has significantly improved the investigationof infratentorial structures by providing high-resolution images. However, none of the publicly available methods for cerebellarimage analysis
Inglese, M., Maria Petracca, Fleysher, L., Cocozza, S., Mohamed Mounir El Mendili, Kornelius Podranski, Sirio Cocozza, Petracca, M., El Mendili, M., Lazar Fleysher, Matilde Inglese, Podranski, K.   +11 more
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Noninvasive Delineation of Glioma Infiltration with Combined 7T Chemical Exchange Saturation Transfer Imaging and MR Spectroscopy: A Diagnostic Accuracy Study

Metabolites, 2022
For precise delineation of glioma extent, amino acid PET is superior to conventional MR imaging. Since metabolic MR sequences such as chemical exchange saturation transfer (CEST) imaging and MR spectroscopy (MRS) were developed, we aimed to evaluate the ...
Yifan Yuan, Yang Yu, Yu Guo, Yinghua Chu, Jun Chang, Yicheng Hsu, Patrick Alexander Liebig, Ji Xiong, Wenwen Yu, Danyang Feng, Baofeng Yang, Liang Chen, He Wang, Qi Yue, Ying Mao   +14 more
doaj   +1 more source

Radiological and Clinical Value of 7T MRI for Evaluating 3T-Visible Lesions in Pharmacoresistant Focal Epilepsies

Frontiers in Neurology, 2021
Objective: The recent FDA approval of the first 7T MRI scanner for clinical diagnostic use in October 2017 will likely increase the utilization of 7T for epilepsy presurgical evaluation. This study aims at accessing the radiological and clinical value of
Z. Irene Wang, Se-Hong Oh, Se-Hong Oh, Mark Lowe, Mykol Larvie, Paul Ruggieri, Virginia Hill, Virginia Hill, Volodymyr Statsevych, Doksu Moon, Jonathan Lee, Todd Emch, James Bena, Ingmar Blümcke, Ingmar Blümcke, William Bingaman, Jorge A. Gonzalez-Martinez, Imad Najm, Stephen E. Jones   +18 more
doaj   +1 more source

Ultra-high field magnetic resonance imaging in human epilepsy: A systematic review

NeuroImage: Clinical, 2021
Rationale: Resective epilepsy surgery is an evidence-based curative treatment option for patients with drug-resistant focal epilepsy. The major preoperative predictor of a good surgical outcome is detection of an epileptogenic lesion by magnetic ...
R.H.G.J. van Lanen, A.J. Colon, C.J. Wiggins, M.C. Hoeberigs, G. Hoogland, A. Roebroeck, D. Ivanov, B.A. Poser, R.P.W. Rouhl, P.A.M. Hofman, J.F.A. Jansen, W. Backes, K. Rijkers, O.E.M.G. Schijns   +13 more
doaj   +1 more source

EVALUATION OF INTRACRANIAL HYPERTENSION ON DATA OF ULTRA-HIGH-FIELD MRI

Сибирский научный медицинский журнал, 2019
The goal is to evaluate the contribution of age and individual features of the cerebral cranium, foci in the CNS structures, pathomorphological changes in the liquor-containing spaces and angio-cerebral structures visualized on ultra high field magnetic ...
A. Y. Letyagin, Y. I. Borodin
doaj   +1 more source

High-Tc SQUID-based ultra-low field MRI in unshielded environments [PDF]

AIP Advances
A high-performance MRI based on high-Tc SQUID and flux coupling at ultralow magnetic fields is reported in this work. The technique of NMR/MRI was optimized to study MRI of water phantoms and fingers.
Shu-Hsien Liao, Han-Sheng Huang
doaj   +1 more source

Exposure System and Dosimetry for in vitro Studies of Biocompatibility of Pulse-Modulated RF Signals of Ultra High Field MRI.

, 2013
International audience: A new set-up for exposure of human cells in vitro at 37°C to pulse-modulated 300 MHz and 500 MHz signals of future magnetic resonance imaging (MRI) systems is designed, built up, and characterized.
Soubere-Mahamoud, Yonis, Le Quement, Catherine, Zhadobov, Maxim, Luong, Michel, Carton, Pierre-Henri, Sauleau, Ronan, Piret, Yves, Ferrand, Guillaume, Le Drean, Yves   +8 more
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COMBINED ASSESSMENT OF CARTILAGE AND SUBCHONDRAL BONE IN OSTEOARTHRITIC AND NON-OSTEOARTHRITIC KNEE COMPARTMENTS: A ULTRA-HIGH FIELD MRI STUD

, 2023
International audienceBackground Knee osteoarthritis (OA) is one of the most common degenerative diseases causing disability in elderly people. Although X-ray radiography is widely used as a diagnostic tool, several limitations have been identified [1 ...
Chagnaud, C., Suzanne, F., Hostin, Marc-Adrien, Soldati, Enrico, Mattei, Jean Pierre, Guye, M., David, Bendahan, Guis, Sandrine, Theo, W., Bourara, Amir   +9 more
core   +1 more source