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Quantitative evaluations on coronary vessel systems are of increasing importance in cardiovascular diagnosis, therapy planning, and surgical verification. Whereas local evaluations, such as stenosis analysis, are already available with sufficient accuracy, global evaluations of vessel segments or vessel subsystems are not yet common. Especially for the(More)
BACKGROUND The normal left ventricle shows a systolic wringing motion with clockwise rotation at the base and counterclockwise rotation at the apex. PURPOSE The aim of the present study was (1) to assess left ventricular (LV) contraction and relaxation in patients with chronic heart failure (CHF), and (2) to evaluate the effect of medical therapy on LV(More)
The longitudinal lung function data in 286 subjects from a 28 year follow-up of childhood asthma is reported. Airway obstruction in mid-adult life was present mainly in those with moderately severe asthma. Subjects who had been wheeze free for at least 3 years, even if asthma had been persistent in childhood, had normal lung function and no increased(More)
Acute cerebral ischaemia should no longer be considered a tragic untreatable event but a medical emergency. To be able to start therapy, imaging is needed to assess the presence of a potential penumbra, i.e. an area of the brain which is hypoperfused but not yet definitively infarcted. With the development of diffusion and perfusion MR techniques, the(More)
A cohort of 378 asthmatic children was studied from 7 to 35 yr of age at 7-yr intervals. On selection for inclusion in the study sample, the children had a wide range of severity of wheezing. At each 7-yr review, asthma severity, the presence of eczema or hay fever, and skin test reactivity to house dust mite or rye grass were recorded by questionnaire or(More)
The goal of the study was the validation of an accurate method for three-dimensional reconstruction and quantitative assessment of volumes, lengths and diameters of coronary vascular branches and segments from biplane angiographic projections. Methods: The accuracy was tested in a complex phantom. In vivo, inter- and intraobserver agreement were assessed by(More)
Fluid-filled systems are generally used for invasive pressure measurements in cardiology, anesthesiology and intensive care medicine. Wave reflection and attenuation cause considerable signal distortion. Methods. The transducer signal is amplified (no filtering) and sampled (rate 1 kHz) using an autocorrelation based algorithm to detect instantaneous cycle(More)