Andreas Kauert

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BACKGROUND AND PURPOSE Similar to digital subtraction angiography, dynamic spin labeling angiography (DSLA) provides time-resolved measurements of the influx of blood into the cerebral vascular tree. We determined whether DSLA may help in assessing the degree of stenosis and whether it provides information about intracerebral collateralization and allows us(More)
Ultrasound assessment of global cerebral circulation time (CCT) using echo-contrast bolus tracking is a new approach to characterise the perfusion status of the human brain. We present the analysis of global CCT in 36 healthy volunteers and one patient with a cerebral arteriovenous malformation (AVM), measured by extracranial power duplex. CCT was defined(More)
INTRODUCTION Carotid artery disease (CAD) comprising high-grade internal carotid artery stenosis (CAS) or carotid artery occlusion (CAO) may lead to ipsilateral impaired cerebral blood flow and reduced retinal blood supply. OBJECTIVE To examine the influence of chronic CAD on retinal blood flow, retinal morphology, and visual function. METHODS Patients(More)
Background Idarucizumab is a monoclonal antibody fragment with high affinity for dabigatran that reverses its anticoagulant effects within minutes. It may exhibit the potential for patients under dabigatran therapy suffering ischemic stroke to regain eligibility for thrombolysis with rt-PA and may inhibit lesion growth in patients with intracerebral(More)
A 47-year-old patient suffered recurring impairment of consciousness, lasting for 20 s to 2 min, every few days when brushing his teeth. Mental relaxation (e.g. on weekends or after sexual intercourse) was observed to favor these events. At first neurological consulting, the series had been going on for 1 year; he reported approximately ten episodes per(More)
Im operativen Zugangsweg für eine Karotisrekonstruktion findet sich eine Vielzahl nervaler Strukturen. Läsionen können für den Patienten zu mitunter schwerwiegenden Beeinträchtigungen führen. Deshalb ist die Kenntnis der Anatomie und Funktion dieser Nervenstrukturen für Operateure von weitreichender Bedeutung. Am ehesten gefährdet sind N. laryngeus(More)
A new setup for high precision, automated secondary pH measurements together with a reference measurement procedure has been developed and tested in interlaboratory comparisons using buffers pH 4.005, pH 7.000, and pH 10.012 at 25 °C and 37 °C. Using primary buffers as standards, a standard uncertainty in pH better than 0.005 can be reached. The central(More)
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