Christoh U Herborn

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OBJECTIVE The favorable properties of silicon nitride (Si3N4) ceramics, such as high mean strength level and fracture toughness, suggest biomedical use as an implant material. Minor reservations about the biocompatibility of Si3N4 ceramics were cleared up by previous in vitro and in vivo investigations. STUDY DESIGN AND SETTING A Si3N4 prototype(More)
BACKGROUND The favorable properties of silicon nitride (Si3N4) ceramic, such as high stability and biocompatibility suggest its biomedical use as an implant material. The aim of this study was to test its suitability for osteosynthesis. MATERIALS AND METHODS A Si3N4 prototype minifixation system was manufactured and implanted for osteosynthesis of(More)
General recommendations on how to deal with pregnancy in patients with Klippel-Trenaunay syndrome (KTS) are rare. We describe the case of a 32-year-old female with KTS, involving the head and the left arm and leg, delivering a healthy female child, and are reviewing the recent literature. The risk to deliver an ill child is low in women with KTS. At the end(More)
A 25-year-oldmale student complained about episodic palpitations, dizziness, nausea and headache 5 years prior to presentation. No otorhinolaryngic, neurologic or gastrointestinal causes were identified. Several ECG recordings revealed sinus node dysfunction with intermittent sinus arrest and AV-nodal escape rhythm. The patient was given a permanent(More)
A 25-year-old male student complained about episodic palpitations, dizziness, nausea and headache 5 years prior to presentation. No otorhinolaryngic, neurologic or gastrointestinal causes were identified. Several ECG recordings revealed sinus node dysfunction with intermittent sinus arrest and AV-nodal escape rhythm. The patient was given a permanent(More)
C. U. Herborn, W. M. Ajaj, T. C. Lauenstein, S. Massing, S. G. Ruehm Dept. of Diagnostic and Interventional Radiology, University Hospital Essen, Essen, Germany, University Hospital Essen, Essen, Germany INTRODUCTION Dark-lumen MR colonography combining a water enema with intravenous contrast administration is a rapidly evolving, minimally invasive method(More)
Siliziumnitrit- (Si3N4-)Keramik zeichnet sich durch hohe Stabilität sowie gute Biokompatibilität aus und hat breite industrielle Verwendung. Ziel dieser Studie war es, die Praktikabilität als Osteosynthesematerial zu überprüfen. Drei Minischweinen wurden Knochendeckel der Stirnhöhlenvorderwand ausgesägt und mit Si3N4-Schrauben und -Platten(More)
PURPOSE The benefit of ultrasound in comparison with full-body MRI during a medical checkup in preventive health care was examined with regard to the detection of cardiovascular risk factors, metabolic syndrome, malignant tumors and further relevant findings. MATERIALS AND METHODS 833 consecutive patients (266 f/567 m, age: 19 - 93 y, mean age: 56.6 y)(More)
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