Projected Iterative Soft-thresholding Algorithm for Tight Frames in Compressed Sensing Magnetic Resonance Imaging [PDF]
arXiv, 2015 Compressed sensing has shown great potentials in accelerating magnetic resonance imaging. Fast image reconstruction and high image quality are two main issues faced by this new technology. It has been shown that, redundant image representations, e.g. tight frames, can significantly improve the image quality.
arxiv
Permutation-based true discovery proportions for functional Magnetic Resonance Imaging cluster analysis [PDF]
arXiv, 2020 We propose a permutation-based method for testing a large collection of hypotheses simultaneously. Our method provides lower bounds for the number of true discoveries in any selected subset of hypotheses. These bounds are simultaneously valid with high confidence.
arxiv
Distinct causal influences of parietal versus frontal areas on human visual cortex: evidence from concurrent TMS-fMRI [PDF]
, 2010 It has often been proposed that regions of the human parietal and/or frontal lobe may modulate activity in visual cortex, for example, during selective attention or saccade preparation.
Bestmann, Sven +7 more
core
Functional magnetic resonance imaging in schizophrenia
Dialogues in Clinical Neuroscience, 2010 The integration of functional magnetic resonance imaging (fMRI) with cognitive and affective neuroscience paradigms enables examination of the brain systems underlying the behavioral deficits manifested in schizophrenia; there have been a remarkable increase in the number of studies that apply fMRI in neurobiological studies of this disease.
Raquel E. Gur, Ruben C. Gur
openaire +3 more sources
Neural response after a single ECT session during retrieval of emotional self-referent words in depression: a randomized, sham-controlled fMRI study [PDF]
, 2017 Background Negative neurocognitive bias is a core feature of depression that is reversed by antidepressant drug treatment. However, it is unclear whether modulation of neurocognitive bias is a common mechanism of distinct biological treatments.
Harmer, Catherine +10 more
core +2 more sources
Brain Research BulletinSmoking puts patients at high risk for cognitive and psychiatric disorders. The aim of this study was to explore the effects of nicotine use on primary visual network (PVN) and its association with neurotransmitters.
Jieping Sun +12 more
doaj
Functional Brain Imaging: A Comprehensive Survey [PDF]
arXiv, 2016 Functional brain imaging allows measuring dynamic functionality in all brain regions. It is broadly used in clinical cognitive neuroscience as, well as in research. It will allow the observation of neural activities in the brain simultaneously. From the beginning when functional brain imaging was initiated by the mapping of brain functions proposed by ...
arxiv
Visualization of brain function and tissue characterization in patients with brain tumor using magnetic resonance imaging. 1) Clinical applicability of functional magnetic resonance imaging and activation study with single photon emission computerized tomography for functional mapping 2) Pulsed off-resonance magnetizaiton transfer for brain tumor in patients [PDF]
, 1999 博士論文 (Doctoral dissertation)1) Clinical applicability of functional magnetic resonance imaging and activation study with single photon emission computerized tomography for functional mapping2) Pulsed off-resonance magnetizaiton transfer for brain tumor ...
397030, 奥村, 歩
core
No difference in postprandial mesenteric blood flow between healthy younger and elderly individuals
Scientific ReportsWe recently used phase-contrast magnetic resonance imaging (PC-MRI) to demonstrate an attenuated postprandial blood flow response in the superior mesenteric artery (SMA) in patients with Parkinson's disease compared to age- and sex-matched healthy ...
Thomas Hartwig Siebner +6 more
doaj +1 more source
Parallel MRI Reconstruction by Convex Optimization [PDF]
arXiv, 2014 In parallel magnetic resonance imaging (pMRI), to find a joint solution for the image and coil sensitivity functions is a nonlinear and nonconvex problem. A class of algorithms reconstruct sensitivity encoded images of the coils first followed by the magnitude only image reconstruction, e.g. GRAPPA. It is shown in this paper that, if only the magnitude
arxiv