PET in der Strahlentherapie: Perspektiven

Zusammenfassung

Die Positronen-Emissions-Tomografie (PET) hat einen wichtigen Stellenwert in der modernen Strahlentherapie erlangt. Die Integration der funktionellen PET-Daten in die Bestrahlungsplanung wurde durch die Fusion von CT und PET in einem Gerät wesentlich erleichtert. Entwicklungs- und Optimierungsbedarf besteht jedoch in der Definition der Tumorgrenzen im PET und im Umgang mit Atembewegungen. Neben dem am häufigsten zur Anwendung kommenden Radiopharmakon ¹⁸F-Fluordesoxyglukose (FDG) sind die Anwendung von Hypoxiemarkern und Radiotracerentwicklungen für die Visualisierung anderer definierter radiobiologischer Resistenzmechanismen wünschenswert.

Abstract

Positron emission tomography (PET) has evolved as an important tool in modern radiotherapy. Integration of functional PET data into radiation treatment planning is facilitated due to PET-CT scanner, optimizing data fusion. Optimization of definition of tumour borders and reduction of movement artifacts is warranted. Besides the application of ¹⁸F-fluorodeoxyglucose (FDG) utilization of tracers visualizing hypoxia and the development of novel tracers depicting other defined biological mechanisms of radioresistance is a promising avenue for future research.

Schlüsselwörter

PET / CT - FDG - Bestrahlungsplanung - Strahlenbiologie - Hypoxie - Theragnostics

Key words

PET / CT - FDG - radiation treatment planning - radiation biology - hypoxia - theragnostics

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