نتایج جستجو برای: voxel pattern analysismvpa
تعداد نتایج: 361371 فیلتر نتایج به سال:
Childhood trauma is associated with smaller gray matter volume, similar to the pattern seen in psychotic disorders. We explored the relationship between childhood abuse, psychosis, and brain volume in a group of 60 individuals with a psychotic disorder and 26 healthy control subjects. We used voxel-based morphometry (VBM) to quantify gray and white matter volume and the Childhood Trauma Questio...
Overcoming Coil Phase Effects in Highly Accelerated Imaging with a Dedicated Fourth Gradient Channel
Introduction: Magnetic Resonance Microscopy (MRM) has become an important tool for in-vivo microscopy and in-vitro/exvivo histology [1,2]. One challenge is that very small RF coils are used to obtain high signal-to-noise ratio in small voxel sizes. These small coils limit the field-of-view, necessitating the use of arrays or multiple studies. In this abstract, the extension of our previous work...
introduction: because of the importance of vertebral compressive fracture (vcf) role in increasing the patients’ death rate and reducing their quality of life, many studies have been conducted for a noninvasive prediction of vertebral compressive strength based on bone mineral density (bmd) determination and recently finite element analysis. in this study, qct-voxel based nonlinear finite eleme...
an integrated model for magnetoencephalography (meg) and functional magnetic resonance imaging (fmri) is proposed. in the proposed model, meg and fmri outputs are related to the corresponding aspects of neural activities in a voxel. post synaptic potentials (psps) and action potentials (aps) are two main signals generated by neural activities. in the model, both of meg and fmri are related to t...
Despite the advent of sophisticated image analysis algorithms, most SPECT (Single Photon Emission Computerized Tomography) cerebral perfusion studies are assessed visually, leading to unavoidable and significant inter and intra-observer variability. Here, we present an automatic method for evaluating SPECT studies based on a computerized atlas of normal regional cerebral blood flow (rCBF). To g...
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