Permeation of gases in fibrous preforms C/C composites has been studied with various degrees infiltration, between 60% and 12% pore volume fraction, both experimentally steady-state flow vs. pressure drop experiments numerically X-ray computerized micro-tomography (?-CT), image processing image-based computations. An excellent agreement found for Darcian permeabilities Knudsen diffusivities, wh...

Diffuse hepatic hemangiomatosis without extrahepatic lesions is extremely rare in adults. A case of diffuse hepatic hemangiomatosis involving right lobe in a 50-year-old woman was presented. The hemangiomatosis was demonstrated by ultrasonography, computerized tomography (CT) and magnetic resonance image (MRI), and was confirmed histopathologically. Although diffuse hepatic hemangiomatosis is a...

True three-dimensional proton nuclear magnetic resonance (NMR) imaging was performed on an 84-year-old man following a recent cerebral embolic infarction. NMR data obtained using different pulse sequences were inter-correlated, stressing the significance of image appearance in terms of the NMR tissue parameters. Planes selected for display from the three-dimensional data set allowed optimal vis...

We analyzed computerized tomography (CT) findings in six patients with Fahr's syndrome. They presented calcifications in basal ganglia, dentate nucleus, subcortical region and semioval center, due to alteration in calcium metabolism or due to senile relative hypoxemic state. The image pattern was not strictly related with etiology, although some differences in dystrophic senile calcifications (...

The aim of this study is to examine the effects wearing high-heeled shoes (HHS) by comparing flat on first metatarsal bone using finite element method. modeled from computerized tomography (CT) image as 3D and imported ANSYS Workbench Software. Body weight (BW) muscle forces were applied bone. was fixed at proximal region for boundary conditions. Three evaluation criteria examined results stres...

Outside back cover image: On-skin devices that track multi-vital regional tissue hemodynamics are essential for the long-term monitoring of oxygen-mediated effects in patients with cardiovascular diseases. This study presents an ultrathin and ultralight near-infrared optoelectronic biosensor continuous lesions caused by peripheral arterial disease (PAD). The is capable efficiently detecting mul...

A solvothermal route to prepare Glutathione capped hybrid ytterbium/iron oxide nanoparticles with potential applications as multiplatform contrast agent in medical image techniques has been developed. The influence of molar ratio used precursor, well the degree autoclave filling on structural and morphological characteristics obtained extensively studied. Although all present similar compositio...

Due to its objectivity, reproducibility and predictive value confirmed by many large-scale statistical clinical studies, Heidelberg Retina Tomography has become one of the most used computerized image analysis of the optic disc in glaucoma. It has been signaled, though, that the diagnostic value of Moorfieds Regression Analyses and Glaucoma Probability Score decreases when analyzing optic discs...

Detailed analysis of spinal deformity is important within orthopaedic healthcare, in particular for assessment of idiopathic scoliosis. This paper addresses this challenge by proposing an image analysis method, capable of providing a full three-dimensional spine characterization. The proposed method is based on the registration of a highly detailed spine model to image data from computed tomogr...

In the past three decades, techniques that permit noninvasive quantitation of the function of the heart have been developed. Exercise electrocardiography has been widely used to determine the presence or absence of ischemic heart disease. Echocardiography permits detection of valvular, congenital and arteriosclerotic disease and quantitation of its severity. Selective use of isotopes allows nu...