Ralf Lehmann

Martin Borggrefe2
Ibrahim Akin2
Ibrahim El-Battrawy2
Michael Behnes2
2Martin Borggrefe
2Ibrahim Akin
2Ibrahim El-Battrawy
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  • Johannes Vermehren, Beate Schlosser, Diana Domke, Sandra Elanjimattom, Christian Müller, Gudrun Hintereder +10 others
  • 2012
BACKGROUND AND AIMS The prevalence of hepatitis C virus (HCV) antibodies in Germany has been estimated to be in the range of 0.4-0.63%. Screening for HCV is recommended in patients with elevated ALT levels or significant risk factors for HCV transmission only. However, 15-30% of patients report no risk factors and ALT levels can be normal in up to 20-30% of(More)
  • Ibrahim El-Battrawy, Ibrahim Akin, Benedikt Münz, David Manuel Leistner, Michael Behnes, Thomas Henzler +4 others
  • 2016
Intraventricular septum-hematoma is a rare complication following percutaneous coronary intervention (PCI). This complication may represent a challenge for accurate diagnosis and treatment. This case report is about a 60-year-old male patient being admitted with an acute coronary syndrome. Despite successful PCI with drug eluting stent implantation into the(More)
BACKGROUND Bleeding events after percutaneous coronary interventions (PCI) are associated with patients' age, gender, and the presence of chronic kidney disease, antithrombotic treatment, as well as arterial access site. Patients being treated by PCI using radial access site are associated with an improved prognosis. However, the safety of femoral closure(More)
Current high speed networks cannot be fully utilized by to-day's high end systems. The processing requirements of next generation network protocols require intelligent network cards with network protocol offload engines, for example based on a network processor. To reduce development time, we reuse existing software protocol stack implementations for(More)
Todays networks are characterized by heterogeneous environments. Various transmission techniques coexist and offer different bandwidths at different costs. Because of video conferences and similiar applications becoming more and more important this paper presents the architecture of the video communication system " XNetvideo " , which is sca-lable in terms(More)
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