Jürgen Frohn

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FLORID1 F-Logic Reasoning In Databases is a deductive object oriented database system incorporating F-logic [3] as a data definition and query language and combining the advantages of deductive databases with the rich modelling capabilities of object oriented concepts. F-logic provides complex objects, uniform handling of data and metadata, rule-defined(More)
Measurements of the bone mineral content (BMC) of lumbar spine by dual-photon absorptiometry (DPA) are performed mainly in the anteroposterior (AP) projection. Due to superimposition of the abdominal aorta, the BMC measured for patients with aortic calcification usually is too high. To determine the influence of aortic calcifications, DPA scans were(More)
OBJECTIVE To investigate whether atomic force microscopy (AFM) in combination with classical light microscopy allows simple identification of surface structures of cells from pleural and ascitic fluids for diagnostic purposes in place of scanning electron microscopy (SEM). STUDY DESIGN We examined a total of 180 cells obtained from 9 reactive pleural or(More)
A PC software program with a graphical users platform was developed which enables the transfer of bone scintigraphy results to vectorgraphy-based skeleton images, and to implement a fully automatic anatomical localization definition of lesions. Documentation of the results is made possible by a complete, conventional structured medical letter. Additional(More)
A female patient with steadily increasing carcinoembryonic antigen (CEA) serum levels of unknown origin was referred for immunoscintigraphy with indium 111-labelled CEA-specific monoclonal antibody. The procedure revealed a tumour, undetectable by conventional diagnostic methods. Anatomical landmarking using the second tracer isocontour technique allowed(More)