Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Uwe Leder"'
Autor:
Kirsi Lauerma, Uwe Leder, Markku Mäkijärvi, Joerg Schreiber, Toivo Katila, Helena Hänninen, Juhani Knuuti, Lauri Toivonen, Jens Haueisen, Timo Mäkelä, Matthias Goernig, Panu Takala, Jukka Nenonen
Publikováno v:
Computerized Medical Imaging and Graphics. 33:1-6
The assessment of myocardial viability is a major diagnostic challenge in patients with coronary artery disease (CAD) after myocardial infarction. Novel threedimensional current density (CD) imaging algorithms use high-resolution magnetic field mappi
Autor:
Andreas Voss, Uwe Leder, Rico Schroeder, Tino Roth, Ingo Palutke, Matthias Goernig, Hans R. Figulla, Sandra Truebner
Publikováno v:
Pacing and Clinical Electrophysiology. 31:858-862
Background: Autonomic regulation analysis is useful in risk stratification of ventricular tachycardia and sudden cardiac death in chronic heart failure (CHF). Heart rate variability (HRV) reflects the condition of autonomic regulation. For analyzing
Publikováno v:
Pacing and Clinical Electrophysiology. 29:188-191
Background: Early and late restenosis in up to 30% remains a major problem for long-term success after percutaneous coronary intervention (PCI). Compared to bare metal stents, the use of drug-eluting stents reduces restenosis below 10%, but implant c
Publikováno v:
Physics in Medicine and Biology. 51:145-151
Vortex currents may be of importance in the early diagnosis of myocardial infarction caused by an occlusion of a coronary artery. We investigated the influence of a passive vortex current distribution, modelled by different conductivities in a hollow
Publikováno v:
IEEE Transactions on Biomedical Engineering. 49:1379-1384
A method of postprocessing and visualizing three-dimensional vector fields, such as current density reconstruction results, is presented. This method is based on equivalent ellipsoids fitted to the vector fields. The technique has been tested with si
Publikováno v:
Annals of the New York Academy of Sciences. 972:133-138
A new method for visualizing and postprocessing three-dimensional time varying vector fields is presented. This method is based on equivalent ellipsoids fitted to these fields. The new technique has been tested on vector fields representing current d
Publikováno v:
Biomedizinische Technik/Biomedical Engineering. 47:151-154
BACKGROUND Neurovegetative and haemodynamic changes impact on the regulation pattern of blood pressure and heart rate in patients with heart failure. We studied these patterns and their interactions in patients with idiopathic dilated cardiomyopathy
Publikováno v:
Medical Engineering & Physics. 24:33-43
The heart rate variability (HRV) is related to several mechanisms of the complex autonomic functioning such as respiratory heart rate modulation and phase dependencies between heart beat cycles and breathing cycles. The underlying processes are basic
Publikováno v:
Biomedizinische Technik/Biomedical Engineering. 47:530-533
The aim of this study was to detect pathological changes of the complex autonomous regulation of ecg, blood pressure and respiration (synchronously recordings of 30 minutes) in patients with cardiac diseases. We investigated the cardiovascular and ca
Autor:
Uwe Leder, V. Baier, Hannes Nowak, Jens Haueisen, H. R. Figulla, Mario Liehr, L. Frankenstein
Publikováno v:
Biomedizinische Technik/Biomedical Engineering. 47:117-123
We extracted and quantified high frequency intra-QRS signals in idiopathic dilated cardiomyopathy (IDC). In IDC the analysis of late potentials in the terminal QRS complex often fails in predicting clinical events because of intraventricular conducti