Results 21 to 30 of about 2,001,078 (317)

A phantom based laser marking workflow to visually assess geometric image distortion in magnetic resonance guided radiotherapy

Physics and Imaging in Radiation Oncology, 2021
Magnetic resonance (MR)-only workflows require quality assurance due to potential dosimetric impacts of using geometry distorted MR images in radiotherapy planning.
Matthias Drobnitzky, Axel vom Endt, Andrew Dewdney   +2 more
doaj   +1 more source

A Low Cost Magnetic Resonance Relaxometry Sensor [PDF]

, 2015
Magnetic resonance relaxometry, conducted by measuring relaxation parameters at different field strengths, has become an increasingly popular technique in recent years. This technique, known as field cycling, often uses expensive and large electromagnets.
Elizabeth Dye, Morris, RH, Dye, ER, Michael Newton, Newton, MI, Theodore Hughes-Riley, Hughes-Riley, T, Steven Parslow, Robert Morris, Parslow, ST   +9 more
core   +1 more source

Resonance superfluidity: Renormalization of resonance scattering theory [PDF]

Physical Review A, 2002
15 pages, 10 ...
Kokkelmans S, Milstein JN, CHIOFALO, MARIA LUISA, Walser R, Holland MJ   +4 more
openaire   +2 more sources

Static and dynamic changes of intrinsic brain local connectivity in internet gaming disorder

BMC Psychiatry, 2023
Background Studies have revealed that intrinsic neural activity varies over time. However, the temporal variability of brain local connectivity in internet gaming disorder (IGD) remains unknown. The purpose of this study was to explore the alterations of
Xiaoyu Niu, Xinyu Gao, Mengzhe Zhang, Jinghan Dang, Jieping Sun, Yan Lang, Weijian Wang, Yarui Wei, Jingliang Cheng, Shaoqiang Han, Yong Zhang   +10 more
doaj   +1 more source

Altered Cerebro-Cerebellar Effective Connectivity in New-Onset Juvenile Myoclonic Epilepsy

Brain Sciences, 2022
(1) Objective: Resting-state fMRI studies have indicated that juvenile myoclonic epilepsy (JME) could cause widespread functional connectivity disruptions between the cerebrum and cerebellum.
Laiyang Ma, Guangyao Liu, Pengfei Zhang, Jun Wang, Wenjing Huang, Yanli Jiang, Yu Zheng, Na Han, Zhe Zhang, Jing Zhang   +9 more
doaj   +1 more source

The role of magnetic resonance imaging in assessing venous vascular abnormalities in the head and neck: a demonstration of cerebrospinal venous insufficiency in a subset of multiple sclerosis patients

Veins and Lymphatics, 2015
The study of chronic cerebrospinal venous insufficiency (CCSVI) and its impact on the development and progression of multiple sclerosis (MS) remains controversial.
E. Mark Haacke, Sean K. Sethi, Jing Jiang, Ying Wang, David T. Utriainen   +4 more
doaj   +1 more source

Imaging in population science: cardiovascular magnetic resonance in 100,000 participants of UK Biobank - rationale, challenges and approaches. [PDF]

, 2013
UK Biobank is a prospective cohort study with 500,000 participants aged 40 to 69. Recently an enhanced imaging study received funding. Cardiovascular magnetic resonance (CMR) will be part of a multi-organ, multi-modality imaging visit in 3-4 dedicated UK
Frank E Rademakers, Steffen E Petersen, Petersen, SE, Rademakers, Frank E., Neubauer, Stefan, Nagel, E, Peakman, T, Sellors, J, Peakman, Tim, Petersen, Steffen E., Rademakers, Frank E, Rademakers, FE, Paul Leeson, Nagel, Eike, Matthews, PM, Young, AA, Tim Peakman, Fabian Bamberg, Plein, S, Friedrich, MG, Young, Alistair A, Young, Alistair, Steve Garratt, Jane M Francis, Sven Plein, Francis, Jane M., Rory Collins, Friedrich, Matthias G, Plein, Sven, Bluemke, David A., Young, Alistair A., Alistair A Young, Jonathan Sellors, Collins, Rory, Leeson, Paul, Francis, JM, Bamberg, F, David A Bluemke, Collins, R, Francis, Jane M, Garratt, Steve, Paul M Matthews, Bluemke, David A, Matthews, Paul M, Matthias G Friedrich, Friedrich, Matthias G., Sellors, Jonathan, Bluemke, DA, Garratt, S, Matthews, Paul M., Neubauer, S, Bamberg, Fabian, Petersen, Steffen E, Eike Nagel, Stefan Neubauer, Leeson, P   +55 more
core   +1 more source

Ultra-short echo time cardiovascular magnetic resonance of atherosclerotic carotid plaque [PDF]

, 2010
Background Multi-contrast weighted cardiovascular magnetic resonance (CMR) allows detailed plaque characterisation and assessment of plaque vulnerability.
Sonia Nielles-Vallespin, Nielles-Vallespin, S, Firmin, DN, Chan, Cheuk F, Keenan, Niall G, Mary N Sheppard, Gatehouse, Peter, Chan Cheuk F, Firmin David N, Gatehouse, P, Keenan, NG, Sheppard, MN, Boyle, JJ, Peter Gatehouse, Chan, CF, Sheppard Mary N, Boyle Joseph J, Joseph J Boyle, Niall G Keenan, Nielles-Vallespin, Sonia, Boyle, Joseph J, Sheppard, Mary N, Pennell, Dudley J, Pennell, DJ, Pennell Dudley J, Gatehouse Peter, Dudley J Pennell, Nielles-Vallespin Sonia, David N Firmin, Cheuk F Chan, Keenan Niall G, Firmin, David N   +31 more
core   +1 more source

Overstability and resonance [PDF]

Annales de l'Institut Fourier, 2003
We consider a singularity perturbed nonlinear differential equation ε u ′ = f
Fruchard, Augustin, Schäfke, Reinhard
openaire   +2 more sources

Resonances in a box [PDF]

Journal of Mathematical Physics, 2000
We investigate a numerical method for studying resonances in quantum mechanics. We prove rigorously that this method yields accurate approximations to resonance energies and widths for shape resonances in the semiclassical limit.
Hagedorn, GA, Meller, B
openaire   +2 more sources