Christoph Dickmann

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UNLABELLED SPECT/PET studies in schizophrenia revealed inconsistent changes of regional cerebral blood flow (rCBF). Frontal hyperperfusion as well as hypoperfusion are described. This study was undertaken to investigate the relations between rCBF, psychopathology according to PANSS and effects of neuroleptic therapy. METHODS Twenty-four drug-naive acute(More)
AIM of this study was to investigate the relations between regional cerebral blood flow (rCBF) of different brain regions in acute schizophrenia and following neuroleptic treatment. METHODS Twenty-two never-treated, acute schizophrenic patients were examined with HMPAO brain SPECT and assessed psychopathologically, and reexamined following neuroleptic(More)
Simulation can enhance the understanding of complex systems. A software producing organisation is a complex system. Therefore, an interactive simulation model is presented that lets its user act in the role of such an organisation's top level management. In this role, business measures must be observed and investment decisions made. The model is developed(More)
Software process improvement needs guidance in proposing, assessing, and selecting a right set of steps and measurements. Often, a process model or a specific methodology is used for this purpose, e.g. the V-Modell, RUP, or agile process methodologies. Each such model or methodology consists of certain activities, procedures, or methods, i.e. a set of(More)
Each process improvement project must prioritize and select the areas or aspects to focus on. Moreover, each such selection needs to be communicated, motivated, and justified to all stakeholders (management as well as participating or affected parties). For both challenges, a conceptual framework and tool set is presented in this paper which is based on a(More)
Note: This is the first edition of the IHE Radiology: Mammography User's Handbook. New editions will be available at and will include examples of more contractual RFP language, more Profiles (for Radiology, IT Infrastructure, Cardiology, and Laboratory domains), and scenarios for workstations and basic PACS installations. The Handbook is intended to(More)
Cervical spine trauma most commonly involves the lower parts in adults. In children lesions of the cervical spine can predominantly be found in the region of C1/C2 including ligament injuries at this level. However such injuries are difficult to detect and only few data are available concerning therapy and prognosis of atlantoxial ligament lesions. We(More)
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