نتایج جستجو برای: magnetic resonance imaging denoising
تعداد نتایج: 745036 فیلتر نتایج به سال:
cerebral palsy is the most common chronic motor disorder of childhood, that affecting approximately 3 infants per 1000 live-births. the risk of brain injuries that potentially cause cerebral palsy has amplified with increasing in survival rates for preterm infants. in addition cerebral palsy has a huge economic impact, to immeasurable health, social, and psychological problems that affected chi...
Introduction: Staff and patient Movement in static magnetic field MRI scanner induces current density in the human tissues, so cause biologic effects in people. The aim of this study was the Modelling of current density induced by moving individual with different velocities in static magnetic field of magnetic resonance imaging. Materials and Methods: current ...
In this project, we apply compressed sensing (CS) technique to achieve high-spatiotemporal functional magnetic resonance imaging (MRI), which is very challenging with conventional approaches due to physical limitations such as slew rate. We also use its ideas of exploiting sparsity for image denoising. Keywords—compressed sensing; MRI; sparsity; image denoising
The image denoising and segmentation is a fundamental task in many medical applications based on magnetic resonance image processing. This problem can be solved by means of nonlinear diffusive filters requiring the solution of evolutive partial differential equations. In this work a coupled system of linear and nonlinear diffusion-reaction equations is proposed and tested for denoising and segm...
we report a rare genetic disorder case of neuroacanthocytosis with clinical profile (oro-lingual-facial abnormal involuntary movements, neuropathy) and typical magnetic resonance findings (cerebral atrophy, bilateral caudate nuclei atrophy with dilated anterior horns of the lateral ventricles), positive family history in his brother and acanthocytosis in peripheral blood smear.
abstract radionuclide cisternography (rnc) is of potential value in pointing out the sites of cerebrospinal fluid (csf) leakage in patients with spontaneous intracranial hypotension (sih). in the current report, we present two patients who underwent rnc for suspected csf leakage. both patients underwent magnetic resonance imaging (mri) and rnc for evaluation. we describe a simple method to incr...
central nervous system involvement arising from schistosomiasis is uncommon. it may be produced most frequently by schistosoma japonicum infection, but reports of s. mansoni presenting as an intracerebral mass lesion are particularly rare. the authors describe the case of a 35-year-old woman with a 3-month history of partial epileptic seizures and headaches. she immigrated to egypt 4 years a...
spinal epidural lipomatosis is a rare condition which is described as the accumulation of fat in the extradural territory and often causes dural impingement. spinal epidural lipomatosis has been implicated in causing a variety of neurologic impairments ranging from back pain, radiculopathy, claudication, myelopathy or even cauda equina syndrome. we report a 46-year-old female with obesity and a...
normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: there is a broad variation in reported frequencies of seizure in multiple sclerosis (ms). in this study, the seizure and its characteristics analyzed among a large group of patients with ms. materials and methods: we reviewed the medical records of all definite ms patients referred to the ms clinic of kashani h...
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