نتایج جستجو برای: relaxometry

تعداد نتایج: 838  

Journal: :Advanced Materials Interfaces 2022

Nanostructured solid composite electrolyte or nano-SCE, which is composed of an ionic liquid, nanoporous silica, and residuals immobilized precursor components, shows promising synergistic properties. The conductivity nano-SCE in the range 2–5 mS cm−1, exceeds bulk liquid at ambient temperature, while maintaining characteristics a such as having no leakage issues confined, lower flammability co...

Journal: :The American journal of clinical nutrition 2015
Judy L Aschner Adam Anderson James Christopher Slaughter Michael Aschner Steven Steele Amy Beller Amanda Mouvery Heather M Furlong Nathalie L Maitre

BACKGROUND Manganese, an essential metal for normal growth and development, is neurotoxic on excessive exposure. Standard trace element-supplemented neonatal parenteral nutrition (PN) has a high manganese content and bypasses normal gastrointestinal absorptive control mechanisms, which places infants at risk of manganese neurotoxicity. Magnetic resonance (MR) relaxometry demonstrating short T1 ...

2006
A. A. O. Carneiro G. R. Vilela D. B. de Araujo O. Baffa

Aspects of magnetic resonance relaxation measurements in human tissues are discussed. The influence of pulse sequences and parameters are compared and analyzed for different tissues. By controlling the acquisition parameters and data fitting the relaxation rate can be useful in several clinical situations. The influence of repetition and echo time, predicted in sequences of signal acquisition, ...

Journal: :Quantitative imaging in medicine and surgery 2023

Background: Diffuse parenchymal liver diseases are contributing substantially to global morbidity and represent major causes of deaths worldwide. The aim our study is assess whether established hepatic fat iron quantitation relaxometry-based quantification hepatocyte-specific contrast material as surrogate for function estimation allows evaluate fibrosis.

2013
Christine Breynaert Tom Dresselaers Clémentine Perrier Ingrid Arijs Jonathan Cremer Leentje Van Lommel Kristel Van Steen Marc Ferrante Frans Schuit Séverine Vermeire Paul Rutgeerts Uwe Himmelreich Jan L. Ceuppens Karel Geboes Gert Van Assche

INTRODUCTION Chronically relapsing inflammation, tissue remodeling and fibrosis are hallmarks of inflammatory bowel diseases. The aim of this study was to investigate changes in connective tissue in a chronic murine model resulting from repeated cycles of dextran sodium sulphate (DSS) ingestion, to mimic the relapsing nature of the human disease. MATERIALS AND METHODS C57BL/6 mice were expose...

2017
Ida Blystad J B Marcel Warntjes Örjan Smedby Peter Lundberg Elna-Marie Larsson Anders Tisell

BACKGROUND AND PURPOSE Damage to the blood-brain barrier with subsequent contrast enhancement is a hallmark of glioblastoma. Non-enhancing tumor invasion into the peritumoral edema is, however, not usually visible on conventional magnetic resonance imaging. New quantitative techniques using relaxometry offer additional information about tissue properties. The aim of this study was to evaluate l...

Journal: :AJNR. American journal of neuroradiology 2004
Regula S Briellmann Ari Syngeniotis Steve Fleming Renate M Kalnins David F Abbott Graeme D Jackson

BACKGROUND AND PURPOSE Increased T2 relaxation times in the ipsilateral hippocampus are present in patients with hippocampal sclerosis. Visual assessment of T2-weighted images of these patients suggests increased signal intensity in the anterior temporal lobe as well. Our aim was to assess hippocampal and anterior temporal T2 relaxation times in patients with partial epilepsy by using a new T2-...

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