نتایج جستجو برای: mri contrast agents
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Broadly speaking, MR imaging techniques can be divided into two groups: those that use extrinsic contrast agents and those that do not. Contrast-enhanced methods for imaging angiogenesis: • Dynamic contrast-enhanced (DCE) MRI using low molecular weight agents (<1,000 Daltons) that rapidly diffuse in the extracellular fluid space (ECF agents) • DCE-MRI using large-molecular agents (>30,000 Dalto...
magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...
Introduction: Molecular imaging is one of the main focuses in medical diagnostics. Nanoparticles allow us to effectively imagine the various component of molecule with high contrast. Different factors have been discussed about contrast agent nanoparticles. Moreover, some of the most important samples have been highlighted in the present study. Methods and Materials: This research is a theoreti...
Hepatocellular carcinoma (HCC) is the 6th most common cancer worldwide. Imaging plays a critical role in HCC screening and diagnosis. Initial screening of patients at risk for HCC is performed with ultrasound. Confirmation of HCC can then be obtained by Computed Tomography (CT) or Magnetic Resonance Imaging (MRI), due to the relatively high specificity of both techniques. This article will focu...
Molecular imaging with targeted contrast agents by magnetic resonance imaging (MRI) allows for the noninvasive detection and characterization of biological changes on a molecular level. In this article, the principles of molecular MRI and its applications in cardiovascular diseases are reviewed. First, basic properties of positive and negative contrast agents are introduced and their effect on ...
Magnetic resonance imaging (MRI) is a powerful medical diagnostic imaging modality for integrin targeted imaging, which uses the magnetic resonance of tissue water protons to display tissue anatomic structures with high spatial resolution. Contrast agents are often used in MRI to highlight specific regions of the body and make them easier to visualize. There are four main classes of MRI contras...
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