Kurt Eberhardt

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Nuclear magnetic resonance spectroscopy (1H-MRS) is a non-invasive method in detecting abnormal spectra of various brain metabolites containing N-acetylaspartate (NAA), Choline (Cho), Creatine (Cr), gamma-Aminobutyric acid (GABA) and Glutamate. Technical processing of the MR-systems, improved automated shimming methods and further development of special(More)
Conventional myelography was compared with a new type of MR technique using a fat-suppressing 3D fast imaging with steady precession (FISP) sequence for diagnosis of the lumbar root compression syndrome. 80 patients with discogenic disease in the lumbar spine were examined with a 1.0-T whole-body MR system (Siemens Magnetom Impact, Erlangen, Germany). A(More)
The increasing capabilities of magnetic resonance (MR) imaging and multisection spiral computed tomography (CT) to acquire volumetric data with near-isotropic voxels make three-dimensional (3D) postprocessing a necessity, especially in studies of complex structures like intracranial vessels. Since most modern CT and MR imagers provide limited postprocessing(More)
Sensors in a networked environment which are used for security applications could be jeopardized by man-in-the-middle or address spoofing attacks. By authentication and secure data transmission of the sensor's data stream, this can be thwart by fusing the image sensor with the necessary digital encryption and authentication circuit, which fulfils the three(More)
The preoperative localization of pharmaco-resistant focal epilepsies before surgery and the prognosis concerning seizure outcome are both of importance. In addition to conventional MRI diagnostics for the detection of small epileptogenic lesions, proton magnetic resonance spectroscopic imaging (HMR spectroscopy) can be useful for assessing the bilaterality(More)
Introduction The high radiation absorption rate of calciferous structures (bones) or structures after contrast enhancement (vessels) makes it possible to (implicitly) segment data records from CT examinations using robust and simple threshold-based algorithms. As opposed to CT, data cannot be segmented using simple threshold values with MRI despite the far(More)
Einleitung Die hohe Strahlenabsorptionsrate calciumhaltiger Strukturen (Knochen) oder Strukturen nach Kontrast-verstärkung (Gefäße) macht es möglich, Datensätze von CT-Untersuchungen durch robuste und einfache schwel-lenwertbasierte Algorithmen (implizit) zu segmentieren. Im Gegensatz zur CT können in der MRT die Daten trotz der sehr viel besseren(More)
Segmental muscle enlargement occurs in a variety of neurogenic conditions. We present a patient with calf hypertrophy, likely produced by continuous neuromuscular irritability and compensatory type 1 and type 2 muscle fiber hypertrophy. The underlying lesion of the S1 nerve root was caused by scarring, which could be demonstrated by Gadolinum enhanced, fat(More)