نتایج جستجو برای: restricted diffusion

تعداد نتایج: 278753  

2014
Seth H. Walters I. Mitch Taylor Zhan Shu Adrian C. Michael

In vivo fast-scan cyclic voltammetry provides high-fidelity recordings of electrically evoked dopamine release in the rat striatum. The evoked responses are suitable targets for numerical modeling because the frequency and duration of the stimulus are exactly known. Responses recorded in the dorsal and ventral striatum of the rat do not bear out the predictions of a numerical model that assumes...

Journal: :Journal of magnetic resonance imaging : JMRI 2012
Susanne Bonekamp Celia P Corona-Villalobos Ihab R Kamel

Diffusion-weighted MRI (DWI) allows the detection of malignancies in the abdomen and pelvis. Lesion detection and characterization using DWI largely depends on the increased cellularity of solid or cystic lesions compared with the surrounding tissue. This increased cellularity leads results in restricted diffusion as indicated by reduction in the apparent diffusion coefficient (ADC). Low pretre...

Journal: :asia pacific journal of medical toxicology 0
yasmin davoudi assistant professor, department of radiology, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) bita dadpour assistant professor, department of internal medicine, medical toxicology centre, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) reza afshari associate professor, department of internal medicine, medical toxicology centre, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) naser hasaniyeh resident, department of radiology, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) nassim matin student, school of medicine, tehran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) mahboobeh rahimi-doab psychologist, cardiac anesthesia research center, imam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

background: carbon monoxide (co) poisoning may lead to hypoxic/anoxic injury and eventually ischemic encephalopathy. magnetic resonance imaging (mri) has a well-recognized role in assessment of the severity of brain damage caused by co poisoning. in this study, we aimed to present and analyze the structural abnormalities in the brain mri and especially in diffusion weighted mri (dwi) images in ...

Bita Dadpour, Mahboobeh Rahimi-Doab Naser Hasaniyeh Nassim Matin, Reza Afshari, Yasmin Davoudi,

Background: Carbon monoxide (CO) poisoning may lead to hypoxic/anoxic injury and eventually ischemic encephalopathy. Magnetic resonance imaging (MRI) has a well-recognized role in assessment of the severity of brain damage caused by CO poisoning. In this study, we aimed to present and analyze the structural abnormalities in the brain MRI and especially in diffusion weighted MRI (DWI) images in ...

Journal: :Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 2012

Journal: :AJNR. American journal of neuroradiology 2012
S Mong B M Ellingson P L Nghiemphu H J Kim L Mirsadraei A Lai W Yong T M Zaw T F Cloughesy W B Pope

BACKGROUND AND PURPOSE A subset of patients with malignant glioma develops conspicuous lesions characterized by persistent restricted diffusion during treatment with bevacizumab. The purpose of the current study was to characterize the evolution of these lesions and to determine their relationship to patient outcome. MATERIALS AND METHODS Twenty patients with malignant glioma with persistent ...

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