Publications by authors named "David G Hurrell"

Article Synopsis
  • MPEG2 is a compression standard for echocardiographic data, and this study evaluates its effectiveness compared to super VHS videotape.
  • Four experienced echocardiographers reviewed MPEG2 and super VHS images to assess factors like heart chamber size and function in a blinded manner.
  • The study found a high concordance rate of 93.6% between the two methods, indicating that MPEG2 is reliable for echocardiographic imaging.
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Left ventricular (LV) wall thickening is the most consistent clinical marker of hypertrophic cardiomyopathy (HC), and characteristically increases substantially during adolescence. In this study, we used 2-dimensional echocardiography to develop a cross-sectional profile of LV wall thicknesses in adult patients with HC. We studied a regional community-based cohort of 239 consecutively enrolled patients (aged 18 to 91 years).

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Because pulmonary venous pressure has never been measured, it is unclear whether pulmonary wedge pressure measures left atrial pressure, as commonly assumed, or pressure more upstream in the pulmonary venous or capillary beds. Fluid-filled mean pulmonary artery and pulmonary wedge pressure were compared with pulmonary venous and left atrial pressure obtained with high-fidelity micromanometer catheters in eight lightly sedated dogs over a physiologic range of filling pressures. In all conditions, mean pulmonary wedge pressure was virtually identical (r = 0.

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