Quantitative FDG PET Assessment for Oncology Therapy

Area of Science:

• Nuclear medicine
• Oncology
• Radiology

Background:

• Positron emission tomography (PET) enables in vivo quantitative assessment of tumor biology.
• F-18 fluorodeoxyglucose (FDG) uptake reflects tumor metabolic activity and can monitor treatment response.
• Biochemical changes detected by FDG PET are often more sensitive than morphological changes seen on CT or MRI.

Purpose of the Study:

• To explore the role of quantitative FDG PET parameters in assessing tumor biology.
• To evaluate the potential of advanced imaging techniques, including radiomics and texture analysis, for predicting treatment outcomes.
• To highlight the promise of these quantitative methods for prognosis and personalized medicine.

Main Methods:

• Quantitative assessment of FDG uptake using standardized uptake value (SUV).
• Volumetric analysis including metabolic tumor volume (MTV).
• Application of radiomics and texture analysis for intratumoral heterogeneity assessment.

Main Results:

• Complete metabolic response on FDG PET correlates with improved disease-free and overall survival.
• Quantitative FDG PET parameters (SUV, MTV) offer objective measures of tumor burden and response.
• Radiomics and texture analysis provide novel insights into tissue characterization and treatment prediction.

Conclusions:

• FDG PET provides sensitive, quantitative assessment of tumor response to therapy.
• Advanced quantitative methods like radiomics hold significant potential for precision medicine in oncology.
• Further multicenter clinical trials are necessary to validate these promising techniques for routine clinical application.