| Speckle noise is an inherent property of SAR images. The discrete wavelet transform results in sub-band decompositions of SAR images which have Laplacian point statistics. We propose a Bayesian estimator to perform speckle reduction. We evaluate the speckle reduction results using two measurements: standarddeviation-to-mean ratio and target-to-clutter ratio. We show that good speckle reductio...

BACKGROUND AND PURPOSE Hallmarks of vulnerable atherosclerotic plaques are inflammation that can be assessed with 18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography, and increased neovascularization that can be evaluated by dynamic contrast-enhanced-MRI. It remains unclear whether these parameters are correlated or represent independent imaging parameters. This study...

BACKGROUND The objective of this study was to assess the efficacy of sealing intermediate nonobstructive coronary saphenous vein graft (SVG) lesions with drug-eluting stents (DES; paclitaxel- or everolimus-eluting stents) for reducing major adverse cardiac events (MACE). METHODS AND RESULTS This was a randomized controlled multicenter clinical trial that enrolled patients with a previous coro...

United States medical student choice of careers in the primary care disciplines has waned significantly over the past 15 years. A complex array of factors influence this decline, which has had an adverse effect on the quality and cost of medical care in the United States. Recent data suggest that the ratio of primary care physician income to specialty physician income (the income ratio) may be ...

A new adaptive step size adjustment least mean square (LMS) algorithm is presented in this paper. The proposed algorithm modified the existing LMS using the estimated output error as an important component for the modification of the step size. Experiment results demonstrate that application of the new algorithm leads to a significant gain in SNR (signal-to-noise ratio), thus visibly reduces th...

This paper considers the ubiquitous problem of estimating the state (e.g., position) of an object based on a series of noisy measurements. The standard approach is to formulate this problem as one of measuring the state (or a function of the state) corrupted by additive Gaussian noise. This model assumes both (i) the sensor provides a measurement of the true target (or, alternatively, a separat...

Abstract. In this paper, we derive the asymptotic statistical properties of a class of generalized discrepancies introduced by Cui and Freeden (SIAM J. Sci. Comput., 1997) to test equidistribution on the sphere. We show that they have highly desirable properties and encompass several statistics already proposed in the literature. In particular, it turns out that the limiting distribution is an ...

“Chi-squared tests” refers to a family of statistical test whose large-sample asymptotics are related in one way or another to the χ family of distributions. These are our first examples of “non-parametric procedures.” Let me mention one particularly useful chi-squared test here before we get started properly. Consider a population whose distribution is believed to follow a known density functi...

fresh frozen plasma (ffp) and prothrombin complex concentrate (pcc) reverse oral anticoagulants such as warfarin. we compared the standard dosage ffp and pcc in terms of efficacy and safety for patients with mechanical heart valves undergoing interventional procedures while receiving warfarin. fifty patients were randomized (25 for each group) with mechanical heart valves [international normali...