Results 61 to 70 of about 24,328 (188)

Application of Evolution Strategies to the Design of SAR Efficient Parallel Transmit Multi-Spoke Pulses for Ultra-High Field MRI [PDF]

, 2020
We present an evolution-strategy based approach to solve the magnitude least squares (MLS) design problem of low flip-angle slice-selective parallel transmit RF pulses for ultra-high field MRI using SAR and peak-RF-constraints.
Poser, Benedikt A., Shah, N. Jon, Eberhardt, Boris, Felder, Jorg   +3 more
core   +1 more source

Dynamically switchable magnetic resonance imaging contrast agents

Exploration, 2021
Contrast agents can improve the sensitivity and resolution of magnetic resonance imaging (MRI) by accelerating the relaxation times of surrounding water protons.
Qiyue Wang, Zeyu Liang, Fangyuan Li, Jiyoung Lee, Liang Ee Low, Daishun Ling   +5 more
doaj   +1 more source

Decoupling methods for radio frequency antennas in ultra-high-field MRI

, 2021
For further development of many applications, such as multi-input multi-output (MIMO), radio frequency identification (RFID), wireless power transfer (WPT), and ultra-high-field magnetic resonance imaging (UHF MRI), decoupling of closely located antennas
Sharifian Mazraeh Mollaei, Masoud
core   +1 more source

Pros and cons of ultra-high-field MRI/MRS for human application

, 2018
Magnetic resonance imaging and spectroscopic techniques are widely used in humans both for clinical diagnostic applications and in basic research areas such as cognitive neuroimaging.
Zaiss, M., Moser, E., David G. Norris, Bachert, P., Norris, D., Mark E. Ladd, Peter Bachert, Martin Meyerspeer, Schmitter, S., Nagel, A., Oliver Speck, Speck, O., Sina Straub, Ewald Moser, Sebastian Schmitter, Straub, S., Armin M. Nagel, Ladd, M., Moritz Zaiss, Meyerspeer , M.   +19 more
core   +1 more source

CHANGES IN BRAIN STEM FUNCTIONAL CONNECTIVITY PATTERNS BETWEEN THE PERIAQUEDUCTAL GRAY AND PONS RELATED TO BLADDER SENSATIONS

Continence, 2023
M de Rijk, A Klijnsma, J Janssen, G van Koeveringe, J van den Hurk   +4 more
doaj   +1 more source

Effects of Anesthetic Agents on Brain Blood Oxygenation Level Revealed with Ultra-High Field MRI

, 2012
International audienceDuring general anesthesia it is crucial to control systemic hemodynamics and oxygenation levels. However, anesthetic agents can affect cerebral hemodynamics and metabolism in a drug-dependent manner, while systemic hemodynamics is ...
Le Bihan, Denis, Lynn Uhrig, Uhrig, Lynn, Jarraya, Béchir, Ciobanu Luisa, Reynaud Olivier, Luisa Ciobanu, Béchir Jarraya, Olivier Reynaud, Denis Le Bihan, Le Bihan Denis, Uhrig Lynn, Ciobanu, Luisa, Reynaud, Olivier, Jarraya Béchir   +14 more
core   +1 more source

Passive RF shimming for 7T head coil with hybridized meta-atom: In vivo investigation

, 2020
International ...
Dubois, Marc, Bonod, Nicolas, Le Bihan, Denis, Raolison, Zo, Sabouroux, Pierre, Georget, Elodie, de Rosny, Julien, Amadon, Alexis, Abdeddaim, Redha, Larrat, Benoit, Antonakakis, Tryfon, Poupon, Cyril, Vignaud, Alexandre, Leroi, Lisa, Mauconduit, Franck, Enoch, Stefan, Tayeb, Gérard   +16 more
core   +2 more sources

Advancing Ultra-High Field MRI functional and structural applications [PDF]

, 2022
Magnetic resonance imaging (MRI) has shown to be a valuable tool for studying the human brain, allowing in-vivo visualization of structures and anatomy in great detail, especially at Ultra-High field strengths (≥ 7T). MRI is not limited by anatomical and
Ferreira de Oliveira, Icaro Agenor
core  

SynPoC: a high-quality generative diffusion model for transforming ultra-low-field point-of-care MRI using high-field MRI representations

Scientific Reports
Ultra-low-field (ULF) point-of-care (PoC) Magnetic Resonance Imaging (MRI) offers a promising pathway to improve accessibility in medical imaging due to its portability and lower cost.
Kh Tohidul Islam, Sanuwani Dayarathna, Shenjun Zhong, Parisa Zakavi, Helen Kavnoudias, Shawna Farquharson, Gail Durbridge, Hongfu Sun, Stephen Bacchi, Gary F. Egan, Markus Barth, Andrew Dwyer, Katie L. McMahon, Paul M. Parizel, Meng Law, Zhaolin Chen   +15 more
doaj   +1 more source

Opportunities and Challenges of High-field and Ultra-high-field Magnetic Resonance Imaging in China

Chinese Journal of Magnetic Resonance
Magnetic resonance imaging (MRI), as a non-invasive, high-resolution medical imaging technology, is a powerful tool for clinical disease diagnosis. Current MRI systems are advancing towards higher magnetic field strength.
MA Yingxue, ZHAO Yanqiang, YANG Xiaodong, JIANG Bin, TAO Cheng   +4 more
doaj   +1 more source