Results 91 to 100 of about 2,889,708 (423)

Static and temporal dynamic changes of intrinsic brain activity in early-onset and adult-onset schizophrenia: a fMRI study of interaction effects

Frontiers in Neurology
BackgroundSchizophrenia is characterized by altered static and dynamic spontaneous brain activity. However, the conclusions regarding this are inconsistent.
Jingli Chen, Jingli Chen, Jingli Chen, Yarui Wei, Yarui Wei, Kangkang Xue, Kangkang Xue, Xinyu Gao, Xinyu Gao, Mengzhe Zhang, Mengzhe Zhang, Shaoqiang Han, Shaoqiang Han, Baohong Wen, Baohong Wen, Guangyu Wu, Jingliang Cheng, Jingliang Cheng   +17 more
doaj   +1 more source

Spatial Imaging and Mechanical Control of Spin Coherence in Strained GaAs Epilayers [PDF]

, 2005
The effect of uniaxial tensile strain on spin coherence in n-type GaAs epilayers is probed using time-resolved Kerr rotation, photoluminescence, and optically-detected nuclear magnetic resonance spectroscopies. The bandgap, electron spin lifetime, electron g-factor, and nuclear quadrupole splitting are simultaneously imaged over millimeter scale areas ...
arxiv   +1 more source

Two-dimensional terahertz magnetic resonance spectroscopy of collective spin waves [PDF]

Phys. Rev. Lett. 118, 207204 (2017), 2016
Nonlinear manipulation of nuclear and electron spins is the basis for all advanced methods in magnetic resonance including multidimensional nuclear magnetic and electron spin resonance spectroscopies, magnetic resonance imaging, and in recent years, quantum control over individual spins.
arxiv   +1 more source

Sarcoidosis of the hypothalamus and pituitary stalk [PDF]

, 1992
We report a rare case of sarcoidosis of the hypothalamic and suprasellar region, with clinical course and the magnetic resonance imaging follow ...
BE Kendall, BJ Stern, Claudia Vogl, CN Linden, DL Veseley, Joachim Stemmler, Josef Lissner, LD Reed, M Brant-Zawadzki, MV Spagnoli, P Delaney, Peter C. Scriba, Thomas J. Voglt, W Ricker, WC Wiederholt, WS Hayes   +15 more
core   +1 more source

Diagnostic image‐based treatment planning for online adaptive ultra‐hypofractionated prostate cancer radiotherapy with MR‐Linac

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose A new workflow was investigated for Elekta Unity MR‐Linac by removing the computed tomography (CT)‐simulation step and using diagnostic CT (DCT) for reference plan generation. Materials and methods Ten patients with ultra‐hypofractionated prostate cancer treated with magnetic resonance imaging (MRI)‐guided adaptive radiotherapy were ...
Yuan Xu, Ningning Lu, Qiao Li, Kuo Men, Xinming Zhao, Jianrong Dai   +5 more
wiley   +1 more source

Diffusion-weighted magnetic resonance imaging as a cancer biomarker: consensus and recommendations.

Neoplasia, 2009
On May 3, 2008, a National Cancer Institute (NCI)-sponsored open consensus conference was held in Toronto, Ontario, Canada, during the 2008 International Society for Magnetic Resonance in Medicine Meeting.
A. Padhani, Guoying Liu, D. Koh, T. Chenevert, H. Thoeny, T. Takahara, A. Dzik-Jurasz, B. Ross, M. Van Cauteren, D. Collins, D. Hammoud, G. Rustin, B. Taouli, P. Choyke   +13 more
semanticscholar   +1 more source

Enhancement of Magnetic Resonance Imaging with Metasurfaces [PDF]

Advances in Materials, 2015
It is revealed that the unique properties of ultrathin metasurface resonators can improve magnetic resonance imaging dramatically. A metasurface formed when an array of metallic wires is placed inside a scanner under the studied object and a substantial ...
A. Slobozhanyuk, A. Poddubny, A. Raaijmakers, C. V. D. van den Berg, A. Kozachenko, Irina A. Dubrovina, I. Melchakova, Y. Kivshar, P. Belov   +8 more
semanticscholar   +1 more source

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

Key regions aberrantly connected within cerebello-thalamo-cortical circuit and their genetic mechanism in schizophrenia: an fMRI meta-analysis and transcriptome study

Schizophrenia
Recent studies have showed aberrant connectivity of cerebello-thalamo-cortical circuit (CTCC) in schizophrenia (SCZ), which might be a heritable trait.
Yarui Wei, Ziyu Wang, Kangkang Xue, Xiaoyu Niu, Longyao Ma, Shaoqiang Han, Baohong Wen, Yong Zhang, Huafu Chen, Jingliang Cheng   +9 more
doaj   +1 more source

Molecular imaging by optically-detected electron spin resonance of nitrogen-vacancies in nanodiamond [PDF]

Nano Lett 13 (2013) 1173-1178, 2012
Molecular imaging refers to a class of noninvasive biomedical imaging techniques with the sensitivity and specificity to image biochemical variations in-vivo. An ideal molecular imaging technique visualizes a biochemical target according to a range of criteria, including high spatial and temporal resolution, high contrast relative to non-targeted ...
arxiv   +1 more source