نتایج جستجو برای: susceptibility mapping
تعداد نتایج: 328255 فیلتر نتایج به سال:
1- INTRODUCTION In the last decades, due to human interventions and the effect of natural factors, the occurrence of landslide increased especially in the north of Iran, where the amount of rainfall is suitable for the landslide occurrence. In order to manage and mitigate the damages caused by landslide, the potential landslide-prone areas should be identified. In landslide susceptibili...
In recent years, flood susceptibility mapping has an important place among the studies carried out to take precautions against floods and mitigate damages possible negative effects caused by floods. this context, analysis, especially on a regional scale, been subject of research many researchers. study, methods used in were investigated. 155 published between 2014 2022 evaluated. general, deter...
BACKGROUND AND PURPOSE Preoperative hemodynamic impairment in the affected cerebral hemisphere is associated with the development of cerebral hyperperfusion following carotid endarterectomy. Cerebral oxygen extraction fraction images generated from 7T MR quantitative susceptibility mapping correlate with oxygen extraction fraction images on positron-emission tomography. The present study aimed ...
Introduction Quantitative susceptibility mapping (QSM) is a new contrast mechanism in magnetic resonance imaging (MRI). The images produced by the QSM enable researchers and clinicians to easily localize specific structures of the brain, such as deep brain nuclei. These nuclei are targets in many clinical applications and therefore their easy localization is a must. In this study, we aimed to i...
BACKGROUND AND PURPOSE Magnetic susceptibility measured with quantitative susceptibility mapping has been proposed as a biomarker for demyelination and inflammation in patients with MS, but investigations have mostly been on white matter lesions. A detailed characterization of cortical lesions has not been performed. The purpose of this study was to evaluate magnetic susceptibility in both cort...
conclusion statistical analysis of susceptibilities of ms patients versus healthy subjects found no excess deposition of calcium content in deep gray matter of ms patients. calcification may not be considered as a biomarker of prognosis in ms. results magnetic susceptibility(x) of calcium content was assessed by number of pixels induced by gp and put in ms patients as well as healthy subjects. ...
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