منابع مشابه
Comparison of brain viscoelasticity and brain volumetry in healthy volunteers
Introduction: Mechanical properties of human soft tissues can be investigated in vivo with dynamic magnetic resonance elastography (MRE) by applying low frequency shear waves and measuring the resulting tissue deflections [1]. From these data, elastic and viscoelastic modules are commonly calculated using the algebraic Helmholtz inversion [2,3]. So far, MRE is the only method for a noninvasive ...
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The amount of medical image data produced in clinical and research settings is rapidly growing resulting in vast amount of data to analyze. Automatic and reliable quantitative analysis tools, including segmentation, allow to analyze brain development and to understand specific patterns of many neurological diseases. This field has recently experienced many advances with successful techniques ba...
متن کاملMR elastography and MRI volumetry of the aging brain
Background: Physiological aging of the brain is accompanied by ubiquitous degeneration of neurons and oligodendrocytes [1]. An alteration of the cellular matrix of an organ impacts its macroscopic viscoelastic properties, which are characterized by mechanical parameters such as stiffness and internal friction. To date Magnetic Resonance Elastography (MRE) is the only non-invasive technique for ...
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Liver transplantation is indicated for primary and salvage treatment of hepatic malignancies including hepatocellular carcinoma (HCC) and hepatic epithelioid hemangioendothelioma, end-stage liver diseases, acute liver failure, and congenital anatomical and metabolic liver diseases such as biliary atresia, Wilson’s disease and hemochromatosis. Living donor liver transplantation (LDLT) is more wi...
متن کاملHow Accurate Is Brain Volumetry? A Methodological Evaluation
We evaluate the accuracy and precision of different techniques for measuring brain volumes based on MRI. We compare two established software packages that offer an automated image analysis, EMS and SIENAX, and a third method, which we present. The latter is based on the Interactive Watershed Transform and a model based histogram analysis. All methods are evaluated with respect to noise, image i...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2012
ISSN: 1053-1807
DOI: 10.1002/jmri.23999