Zusammenfassung
Die nuklearmedizinische Bildgebung mittels Positronenemissionstomographie (PET) oder Single-Photonen-Emissions-Computertomographie (SPECT) bietet neben der Messung von Metabolismus und Blutfluss die Möglichkeit der Darstellung einzelner Moleküle. Bei Patienten mit Morbus Parkinson haben es diese Techniken erstmals erlaubt, die Anzahl der dopaminergen Neurone zu quantifizieren, wodurch die Diagnose gesichert, die Progression der Erkrankung und auch das Anwachsen von Implantaten beurteilt werden kann. PET und SPECT haben einen wesentlichen Beitrag zu unserem heutigen Wissen über die Pathophysiologie dieser Erkrankung geleistet. In den letzten Jahren werden diese Verfahren auch eingesetzt, um die Pathophysiologie der nichtmotorischen Symptome dieser Erkrankung zu verstehen.
Summary
Nuclear medicine imaging using positron emission tomography (PET) or single photon emission computed tomography (SPECT) has enabled to study not only the metabolism and blood flow in specific brain areas but also the quantification of the function of distinct molecules. With respect to Parkinson’s disease PET and later SPECT allowed the number of dopaminergic neurons to be assessed in vivo. These quantifications are relevant to establishing a clinical diagnosis, assessing the progression of the disease or the survival of transplanted dopaminergic neurons. In addition both techniques have markedly contributed to our understanding of the pathophysiology of this disorder. More recently, molecular imaging has been directed towards understanding the pathophysiology of non-motor symptoms in this disorder.
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Der korrespondierende Autor weist auf folgende Beziehungen hin: Honorare für Vorträge und Beratung von GE Healthcare.
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Schwarz, J. Nuklearmedizinisches Imaging bei Parkinson-Syndromen. Nervenarzt 81, 1160–1167 (2010). https://doi.org/10.1007/s00115-010-3026-4
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DOI: https://doi.org/10.1007/s00115-010-3026-4
Schlüsselwörter
- Morbus Parkinson
- Positronenemissionstomographie
- Single-Photonen-Emissions-Computertomographie
- Molekulare Bildgebung
- Pathophysiologie