K. R. McCloy

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Secondary prevention programmes can be effective in reducing morbidity and mortality from coronary heart disease (CHD). In particular, UK guidelines, including those from the Department of Health, emphasize physical activity. However, the effects of secondary prevention programmes with an exercise component are moderate and uptake is highly variable. In(More)
OBJECTIVE To determine the effect of 5-mL injectate on cardiac output measurements in critically ill patients with low ventricular ejection fraction (< 35%). METHODS Thermodilution cardiac output measurements obtained with three 5-mL and three 10-mL (randomly ordered) iced injectates in 50 patients with low ejection fraction were averaged if the(More)
OBJECTIVE The purpose of this study was to evaluate echocardiograms from normal cats for the presence of physiologic valve regurgitation (PVR). BACKGROUND PVR occurs commonly in normal dogs, however, the percentage of normal cats with PVR has not been previously reported. ANIMALS, MATERIALS AND METHODS Echocardiograms were retrospectively and(More)
The method of average local variance (ALV) computes the mean of the standard deviation values derived for a 3/spl times/3 moving window on a successively coarsened image to produce a function of ALV versus spatial resolution. In developing ALV, the authors used approximately a doubling of the pixel size at each coarsening of the image. They hypothesized(More)
In this investigation, the characteristics of the average local variance (ALV) function is investigated through the acquisition of images at different spatial resolutions of constructed scenes of regular patterns of black and white squares. It is shown that the ALV plot consistently peaks at a spatial resolution in which the pixels has a size corresponding(More)
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