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Mild hypothermia (32-34degC) treatment alleviates vital organ damage after cardiac arrest. A new cooling device, the Thermosuittrade operates by applying of a thin layer of water directly to the body surface. Hypothermic patients may experience sequential fibrillation. Therefore, we examined whether defibrillation could be administered safely and effectively in water. A 35 kg swine was anesthetized...
The relationship between bone strength and bone mass is well established. The link between trabecular microarchitecture and biomechanical properties has been less extensively explored. To address this question, we have tested the mechanical behaviour of calcaneus bone samples and investigated the correlations between mechanical properties on the one hand, bone density and fractal analysis of microarchitecture...
This paper presents the preliminary results of the application of a two-dimensional Fractional Brownian Motion (FBM) model of image distribution. This model has proven successful in the interpretation of linear data as well as the segmentation of images. The approach taken by the authors difers from previous work in that rather than extractmg hnear data from the image and using a linear FBM model,...
An extension to a probability density function (PDF)-based analysis of medical images is discussed. The PDF of interest is that of fractional Brownian motion, and the extension is a reformulation of the problem to explicitly exploit two-dimensional data. It is found that the resulting segmentation can be much more accurate than previous methods. However, due to the computational intensity of the problem,...
The Hurst coefficient H can be interpreted as a measure of the texture contained within an image. In this work, the analysis of texture is applied to bone sections in an attempt to quantify calcification. Because the bone structure is generally nonisotropic, a radially oriented implementation of a maximum likelihood estimator for the Hurst coefficient H is proposed to determine a directionally dependent...
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