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  • 1985-1989  (2)
  • Budd-Chiari syndrome, diagnosis  (1)
  • Geodynamics  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Hepatic vein occlusion: Morphologic features on computed tomography and ultrasonography (1986)
    Springer
    Abdominal imaging 11 (1986), S. 305-311 
    Details
    ISSN: 1432-0509
    Keywords: Hepatic veins, thrombosis ; Budd-Chiari syndrome, diagnosis ; Hepatic veins, CT and sonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Hepatic vein occlusion causes morphologic changes that can be demonstrated by computed tomography (CT) and ultrasound. In this study the imaging findings of acute, subacute, and chronic occlusion of the hepatic veins were analyzed retrospectively in 9 patients and correlated with the histopathologic changes. The CT findings were focal or scattered hypodense parenchymal lesions of the liver before and a patchy enhancement after intravenous bolus injection of contrast material. In none of the cases could the hepatic veins be identified. Hepatomegaly with relative enlargement of the caudate lobe was almost always observed. Ultrasonography demonstrated solid material within the major hepatic veins, intrahepatic venous collaterals, and focal parenchymal lesions, which varied with the stage of the disease: a hypoechogenic area was observed in acute hepatic vein thombosis with subsequent hemorrhagic infarction; hyperechogenic lesions corresponded with fibrotic zones in chronic disease. Ascites was shown by both methods in all patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02035097
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The connection of geodynamics with seismicity patterns (1988)
    Springer
    Natural hazards 1 (1988), S. 5-13 
    Details
    ISSN: 1573-0840
    Keywords: Geodynamics ; seismicity ; earthquake ; geomorphology ; China ; Colombia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Notes: Abstract When a study is to be made of seismic risks, the present-day geodynamic conditions are of fundamental importance: Earthquakes do not happen by themselves, they do have a cause. The cause of earthquakes is that the tectonic stresses exceed a critical limit. The build-up of these stresses is conditioned by the geodynamic processes occurring in the region in question. A knowledge of the geodynamics characteristic of a region is therefore fundamental for seismic risk studies. The general methodology for making such a geodynamic study is based on the entire set of manifestations of the plate-tectonic conditions of that region: these include the mechanism of earthquakes, the stresses observed in mines, the orientation of surface joints and even the direction of river valleys. Examples of geodynamic studies and their bearing on seismic risks are shown from various areas of the world, notably from China, India, and Colombia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00168218
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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