Results 21 to 30 of about 719,291 (293)

Altered amide proton transfer weighted and diffusion signals in patients with multiple sclerosis: correlation with neurofilament light chain and disease duration

Frontiers in Neuroscience, 2023
ObjectivesTo compare the signal alterations of amide proton transfer (APT), apparent diffusion coefficient (ADC), and fractional anisotropy (FA) in white matter (WM) lesions in multiple sclerosis (MS), compared with healthy controls (HCs), and to ...
Jing Huang, Jing Huang, Yan Liang, Yi Shan, Yi Shan, Cheng Zhao, Cheng Zhao, Qiongge Li, Qiongge Li, Zhiwei Shen, Huiqing Dong, Zhigang Qi, Zhigang Qi, Jie Lu, Jie Lu   +14 more
doaj   +1 more source

Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble [PDF]

, 2014
As the number of spins in an ensemble is reduced, the statistical uctuations in its polarization eventually exceed the mean thermal polarization. This transition has now been surpassed in a number of recent nuclear magnetic resonance experiments, which ...
B. E. Herzog, D. Cadeddu, F. Xue, M. Poggio, P. Peddibhotla, Schlichter C. P.   +5 more
core   +2 more sources

A versatile EPR toolbox for the simultaneous measurement of oxygen consumption and superoxide production

Redox Biology, 2021
In this paper, we describe an assay to analyze simultaneously the oxygen consumption rate (OCR) and superoxide production in a biological system.
Donatienne d’Hose, Pierre Danhier, Heidi Northschield, Pauline Isenborghs, Bénédicte F. Jordan, Bernard Gallez   +5 more
doaj   +1 more source

Embroidered Coils for Magnetic Resonance Sensors [PDF]

, 2013
Magnetic resonance imaging is a widely used technique for medical and materials imaging. Even though the objects being imaged are often irregularly shaped, suitable coils permitting the measurement of the radio-frequency signal in these systems are ...
Blumich, Blümich, Callaghan, Fukushima, García-Naranjo, Geya, Kleinberg, Manz, Massey, Meiboom, Van Landeghem, Varnaitė   +11 more
core   +2 more sources

Integrated Positron Emission Tomography/Magnetic Resonance Imaging for Resting-State Functional and Metabolic Imaging in Human Brain: What Is Correlated and What Is Impacted

Frontiers in Neuroscience, 2022
Integrated positron emission tomography (PET)/magnetic resonance imaging (MRI) could simultaneously obtain both functional MRI (fMRI) and 18F-fluorodeoxyglucose (FDG) PET and thus provide multiparametric information for the analysis of brain metabolism ...
Yi Shan, Yi Shan, Zhe Wang, Shuangshuang Song, Shuangshuang Song, Qiaoyi Xue, Qi Ge, Hongwei Yang, Hongwei Yang, Bixiao Cui, Bixiao Cui, Miao Zhang, Miao Zhang, Yun Zhou, Jie Lu, Jie Lu   +15 more
doaj   +1 more source

First and second trimester urinary metabolic profiles and fetal growth restriction: an exploratory nested case-control study within the infant development and environment study

BMC Pregnancy and Childbirth, 2018
Background Routine prenatal care fails to identify a large proportion of women at risk of fetal growth restriction (FGR). Metabolomics, the comprehensive analysis of low molecular weight molecules (metabolites) in biological samples, can provide new and ...
Gauri Luthra, Ivan Vuckovic, A. Bangdiwala, H. Gray, J. B. Redmon, E. S. Barrett, S. Sathyanarayana, R. H. N. Nguyen, S. H. Swan, S. Zhang, P. Dzeja, S. I. Macura, K. S. Nair   +12 more
doaj   +1 more source

Assessing Lumbar Plexus and Sciatic Nerve Damage in Relapsing-Remitting Multiple Sclerosis Using Magnetisation Transfer Ratio

Frontiers in Neurology, 2021
Background: Multiple sclerosis (MS) has traditionally been regarded as a disease confined to the central nervous system (CNS). However, neuropathological, electrophysiological, and imaging studies have demonstrated that the peripheral nervous system (PNS)
Ratthaporn Boonsuth, Rebecca S. Samson, Carmen Tur, Carmen Tur, Marco Battiston, Francesco Grussu, Francesco Grussu, Francesco Grussu, Torben Schneider, Masami Yoneyama, Ferran Prados, Ferran Prados, Ferran Prados, Antrea Ttofalla, Sara Collorone, Rosa Cortese, Olga Ciccarelli, Claudia A. M. Gandini Wheeler-Kingshott, Claudia A. M. Gandini Wheeler-Kingshott, Claudia A. M. Gandini Wheeler-Kingshott, Marios C. Yiannakas   +20 more
doaj   +1 more source

170 Nanometer Nuclear Magnetic Resonance Imaging using Magnetic Resonance Force Microscopy [PDF]

, 2002
We demonstrate one-dimensional nuclear magnetic resonance imaging of the semiconductor GaAs with 170 nanometer slice separation and resolve two regions of reduced nuclear spin polarization density separated by only 500 nanometers.
Barrett, Bozorth, Bruland, Bruland, Doran D Smith, Kent R Thurber, Lampel, Lee, Lee E Harrell, Leskowitz, Minard, Paget, Seeber, Sidles, Sidles, Slichter, Smith, Thurber, Thurber, Van Veenendaal, Zwanziger, Züger   +21 more
core   +2 more sources

Reliability and Validity of Power Spectrum Slope (PSS): A Metric for Measuring Resting-State Functional Magnetic Resonance Imaging Activity of Single Voxels

Frontiers in Neuroscience, 2022
Methods that capture the features of single voxels of resting-state fMRI (RS-fMRI) could precisely localize the abnormal spontaneous activity and hence guide precise brain stimulation.
Zhenxiang Zang, Zhenxiang Zang, Yang Qiao, Shaozhen Yan, Shaozhen Yan, Jie Lu, Jie Lu   +6 more
doaj   +1 more source

Projective measurement in nuclear magnetic resonance [PDF]

, 2006
It is demonstrated that nuclear magnetic resonance experiments using pseudopure spin states can give possible outcomes of projective quantum measurement and probabilities of such outcomes.
A. K. Khitrin, Feldman E. B., Jae-Seung Lee   +2 more
core   +2 more sources